Fat of the land: What ancient bones tell us about the origin of the human diet | Jess Thompson ASU

Jessica Thompson PhD, Assistant Professor of Anthropology at Yale University and ASU Institute of Human Origins alumna, shares new research about the origins of the human predatory pattern.
Presented November 9, 2018, at the NYC Metropolitan Club. Read about the event, and learn more about Thompson here: iho.asu.edu/2018-nyc.

[@billdavies6463]

Excellent and entertaining lecture. No talking down or padding out, just nice confident, concise delivery. Thank you, professor.

[@CHHSFans]

She’s so impressive in every single way. Amazing lecture and presentation style !

[@KenDBerryMD]

Brilliant! It seems very reasonable that "we" learned to use large stones to smash skulls & femurs long before we learned how to flake stone knives.

[@beaubolinger1521]

Thank you Dr Berry

[@Metal0sopher]

And since when is this a new idea? Even in the 1969, Space Odyssey film, the primitive apes are shown smashing bones to eat marrow. This is not a new idea, nor is the fact that fat was also more valued. Ever since I was a kid, anthropologists always emphasized the importance of fat and bone marrow in the early development of humans.

[@CosmicComedyLab]

@@Metal0sopher Recent studies of the Y-Chromosomes linage shows NO Genetics from any Ape/Chimpanzee... In fact it only shows Genetics from the Neanderthal which we now know were just a race of human beings... also the recent study by Harvard Graduate Dr. Nathaniel Jeanson indicates the Y-Chromosones "Clock" places the human linage back to about 4500 years or the time of the Biblical flood... before you Poo-Poo it you should watch the 24 part series from this fantastic biologist here: kzbin.info/www/bejne/roGVamp6hN5ghsU I'm always amazed how some of the Evolutionary Biologist try to link fossils of Ape skulls to human beings, but are later shown to be only another specie of Ape(knuckle draggers) Example: The very first Artist renderings of Neanderthal man were portrayed as -"Ape Like Hairy beings", but now they are known to have been just as intelligent as modern humans.

[@randyhughens5138]

Scientist of the year (R&D Journal) professor James Tour, Rice University. 4 PhD's / 700+ published works / 130+ patents / over a dozen companies founded from the medical field to the oil field. Too many accomplishments to list, but his resume is public. Here's a link to his channel. kzbin.info/door/oldwL6T062LNo65OHngXAQ

[@bipolarbear9917]

@@CosmicComedyLab Trying to twist real science into Biblical stories is a fools errand. If you want to believe in adult fairy stories, by all means refer to the Bible. If you want to seek truth, incomplete though it is, you need to use the scientific method. The fact you were watching this on a computer that was invented using the scientific method illustrates which method is more useful for the development of the human species. All religions are just human constructs, and the Bible is just one example of our ignorance. Science offers us a way to really understand our origins, for us to learn to find solutions to important problems, and a way for us to survive into the deep future.

[@michaeljames5936]

Very good lecture, no hints of 'I want to be on TED Talks' at all. Hypothesis, supporting evidence and future directions, without hyperbole, or emoting. SUCH a relief. (NB. I am fine with people having and expressing emotions, but not as an integral part of a science lecture.)

[@OttoGrainer27]

Thank goodness this demand is growing; I can't stand TED anymore.

[@ShadowWizard123]

Imagine dropping a Nota Bene in a KZbin comment.

[@michaeljames5936]

@@ShadowWizard123 Nota good idea? ;)

[@ShadowWizard123]

@@michaeljames5936 not so bad 😁highly unexpected maybe

[@Laura-kl7vi]

Emotions, within reason, I part of normal people's behavior and, within reason, should be present more and more. For example, it's normal to get excited about new information uncovered that illuminates our origins. Other than that emotion, I can't really imagine and have never seen other researcher's emotions beyond excitement. Basically, I feel like "what on earth do you mean?"

[@damianbylightning6823]

My family think it gross that I love to bite into bird bones and suck out the marrow - did it since childhood. Now I have an excuse.

[@otxoawolf9054]

Me too.

[@billygauthier9512]

One of my family's favorite foods is bone marrow soup. It's funny how many families think it's gross to eat the marrow from bones (which is healthy as long as it's from a healthy animal) but yet think it's perfectly fine to give their kids sugary cerial and drinks that give them diabetes down the road. People have it so backwards for the most part.

[@damianbylightning6823]

@@billygauthier9512 I knew I wasn't alone. Great to hear other people have similar tastes.

[@sexysilversurfer]

My family love the marrow. It’s getting rare to find meat on the bone in western countries, that’s probably why people think it’s gross. It’s hard to find organ meat in the supermarket.

[@michaeljames5936]

@@sexysilversurfer Can't find organ meat? I think that's offal for you.

[@MBBurchette]

After watching the passion and excitement with which Dr. Thompson delivered this presentation, I’m rooting for her to have a big impact on her field.

[@elliotw5918]

Me too! This was brilliant!

[@cavemancaveman5190]

She will get stuck with doing presentations. The true hotshots are out in the field. He job is super important and very well done. Thanks

[@Laura-kl7vi]

Are you against women or just against her? If the former, your username is apt. She was in the field and is presenting data from, in part, what her work there was. @@cavemancaveman5190

[@Appleblade]

Gorillas ingest no fat, but they digest fat (fat from their gut microbes)... up to 80% of their calories are from saturated, short chain fats. This is true for cows, too. Imagine, if you could just eat fat directly (like from a dead elephant), you could get rid of your giant gut, and use the surplus energy to, say, grow a bigger noodle. Thought she'd talk about this complimentary evidence from nutrition science, but I guess any talk will have time limits.

[@WorkerBeesUnite]

You hit the nail on the head man

[@bobaldo2339]

A successful lion pride has plenty of surplus energy, including from fat, to afford a bigger brain. They didn't need one (one could argue that they could sure use one now to save them from extinction at our hands). We did need one just to survive with lions around. Coming down from the trees was a dangerous gambit. Scavenging big caucasus with hyenas around was even more dangerous. Lucy was brave!

[@randyhughens5138]

Scientist of the year (R&D Journal) professor James Tour, Rice University. 4 PhD's / 700+ published works / 130+ patents / over a dozen companies founded from the medical field to the oil field. Too many accomplishments to list, but his resume is public. Here's a link to his channel. kzbin.info/door/oldwL6T062LNo65OHngXAQ

[@philipb2134]

That sounds unlikely. Do you have source material one might verify?

[@Appleblade]

@@philipb2134 Amber O'Hearn has a talk where she references the biology. It really doesn't sound unlikely to me when you think about grass and leaves. If she's right that mammals can't break down cellulose (I was taught that in biology class), then how can that sugar be the energy source for the animal? That microbes can break it down (the cell wall, I mean) and use that sugar for energy isn't surprising. That they produce short chain fatty acids as some byproduct doesn't seem odd either. But I'll look for that reference and post it later today. Cheers!

[@bartolomeothesatyr]

Presentations like this are what keep me watching KZbin. It's thoroughly gratifying for this curious layman to be able to observe systematic advances to a field of science as they happen, and Dr. Thompson is an outstanding communicator. I'm somewhat surprised to learn the extent to which hominid paleontology had yet to be contextually systematized, as compared to archaeology.

[@bartolomeothesatyr]

@Michael Gerber Your point is well-taken, but the existence of this presentation belies the argument that KZbin is devoid of worthwhile information.

[@tractorhead971]

Hammer-stone in your hand aiming at bone on an anvil-stone on the ground. You’d soon notice the sharp flakes that happen when particular stones hit each other. Might get you thinking eh.

[@randyhughens5138]

Scientist of the year (R&D Journal) professor James Tour, Rice University. 4 PhD's / 700+ published works / 130+ patents / over a dozen companies founded from the medical field to the oil field. Too many accomplishments to list, but his resume is public. Here's a link to his channel. kzbin.info/door/oldwL6T062LNo65OHngXAQ

[@warrendourond7236]

Yeah, I think it made a few people think, but it didn’t go very far, most people just pounded bone like they’d been shown. Then came along a Newton, but everyone laughed at him, and before he could convince anyone there was something amazing about striking rocks together, the neighbours killed him for his stuff during a shortage of stuff. Thousands of years later an Einstein worked out how to make a spear point, and everyone was astonished. Thousands of years later, as people marvelled at their slightly better spear heads, along came a Tesla...

[@juvenalsdad4175]

@@randyhughens5138 I'm not sure what Dr. Tour's work has to do with the content of this video.

[@danilesambrano4000]

@IfWhiningAtProblemsWorks, WhyDoCorporationsLobby? Yep! When my Lord and Savior tasked me to watch out for his 'sheep' - He was being generous. Sheep act in their own self interest, people . . .not so much.

[@anteconfig5391]

Yup makes sense that they'd notice. Especially if they had accidentally cut themselves with the sharp edge.

[@beatduck]

As a drummer I can totally understand the percussion thing. I can give the smallest child a drumstick and they immediately know the motion, and getting them into a tempo and going faster or slower is easy as well.

[@alexanderofrhodes9622]

Hitting things with sticks in new and interesting ways is the story of human dominance We have the best sticks

[@luddity]

@@alexanderofrhodes9622 And we have the unique ability to throw those sticks in deadly fashion for more effective hunting.

[@garret1930]

@@luddity I am human, make stick go weeeee

[@dahawk8574]

Who knew that Ringo Starr was so perfectly cast in Caveman.

[@willdeeny6691]

Excellent presentation. It all makes total sense to me. Thanks so much for your excellent work!

[@eruston]

My first ‘meat’ that I ate after about five years of ovo-lacto vegetarianism was some delicious bone marrow. Thank god I am no longer plant-based for my diet. I eat meat, organs, fat, no seed oils, no seeds, dairy, and the least toxic plant foods: fruits and honey. Doing fantastic!

[@Cbd_7ohm]

How do you feel about cheese?

[@williammccartney4833]

So you are carnivore or lion diet ?

[@mikafoxx2717]

@@williammccartney4833 Neither if they eat fruit and honey.. more Paul Sugarino misinformation.

[@bohdanburban5069]

Absolutely extraordinary insight.

[@derekmcdaniel6029]

Such a good presenter. I could watch this all day.

[@SteakPhilosophy]

I'm glad I found your channel. Time to binge watch all your content.

[@whitlockbr]

Ironic: Vilhjálmur Stefánsson wrote a book called 'Fat of the Land' and it was about how fat was essential to indigenous people he stayed with.

[@zoeydeu2261]

And he noted that men starved if they ate only lean meat with no fat (rabbit meat)

[@guyjonson6364]

Íslenskur; Icelandic

[@supernotfunnyman]

Note, that the time period Dr Thompson is talking about. Is back when human ancestors were scavengers. Not when they were really capable of hunting.

[@johnnyswatts]

I don't think that's ironic. I think it's an intentional reference.

[@gejost]

why is that ironic?

[@ericrotsinger9729]

I may not agree with every premise but the flow of logic was presented very well.

[@johnmellon1820]

Fascinating. I will be following Dr. Thompson's research with great interest!

[@BaseDeltaZero1972]

A very engaging speaker and obviously in love with her work. Excellent lecture/talk.

[@davefranklyn7730]

It would have been nice to see all of her slides. She addressed several the camera person never showed but kept her in the picture. Even in some cases, when her body language says "look at this" and turns to the slide display to talk about it.

[@dartfather]

Dave Franklyn I think this video was made by somebody from the audience, not a designated video pro. If the cameraman is pre assigned, he will have all the access and the cue when a subject needs to be highlighted.

[@dreamervanroom]

That is a fault in a lot of the Tedx talks as well. It can leave the YT audience in the dark.

[@fitveganathleteintegrateda1695]

terrible camera work regarding the subject.

[@dahawk8574]

The solution is simple: TWO cameras. And then edit with jumpcuts. Even if you’re on the slide for only a split second, we viewers can pause to see it. It is inexcusable in the 2020s to not do the bare minimum coverage. If this was 1970, then I can understand the excuse of being able to afford only one cam. But not in the age when everyone has one in their pocket.

[@maxheadrom3088]

My dog will only eat McDonalds ... how long will it take him to be able to drive my car? (this is a joke - the lecture is really interesting)

[@willdeeny6691]

Homer Simpson's ancestor: "Mmmmm... Marrow fat..."

[@alandean6930]

In a hundred million years maybe your dog's evolved descendants will be able to drive a car.Sorry cars won't exist in a hundred million years or dogs or humans as we know them.

[@robinlillian9471]

@@alandean6930 They would need to evolve hands first to handle a steering wheel. Also, intelligence would have to have a reproductive advantage for them. It doesn't always. Large brains use up a lot of energy, which the diet has to provide. They also make it more dangerous for females to give birth.

[@staceykersting705]

My dog drives. She sits on my lap and pays attn to the road. She puts her paws on the wheel and knows how to honk the horn. I'm just there as the seat warmer and to do the grunt work.

[@elefnishikot]

dogs already know how to drive. they pretend not to know how so they can bark out the window while you drive.

[@MarkMiller-zm2th]

Fascinating lecture.Good to see new theories and ideas

[@NevadaScrubJay]

How fascinating... Great subject... Great presentation...

[@morourke2561]

There is also the fact that one, or the group, could be chased from their prey by a larger predator and return to claim the marrow at a later time when safe

[@chrisnicholson2609]

Perhaps thats where the phrase 'I'll come back to marrow' comes from :-)

[@morourke2561]

@@chrisnicholson2609 Quite, maybe 👍

[@moonshoes11]

@@chrisnicholson2609 Best comment

[@deltavee2]

Probably happened more often than not. They knew the carnivores were only there for the meat, their fat was safe inside the bones and it would keep for several days. Hell, they were probably always scavenging marrow off discarded kills, there would be plenty of them. Lots safer than killing something and defending it like those boneheaded lions. ;- )

[@TommyJMaylee3141]

Very interesting talk!

[@rebeccaketner816]

Fascinating - everything about this video was great. Professor‘s passion for her subject fantastic, thank you.

[@cristianmolina8148]

remarkable presentation, very well explained..totally makes sense..

[@RobertaPeck]

Brilliant theory which makes perfect sence.

[@waynebrinker8095]

As a red blooded male, I must say that I find the lady to be very intelligent.

[@deltavee2]

Smart IS sexy!

[@robinlillian9471]

Your comment is a big turnoff. "The lady" has the right to make a presentation about human evolution without you making it clear that all you care about is whether she would make a good sex partner for you. As if nothing else about her matters at all.

[@evanroberts2771]

@@robinlillian9471 What right is that? The same right we have to say she's hot? If she has an issue with comments on her own presentation here. she'd let it be known. No need to take offense on her behalf. She's not helpless. Maybe she's actually a woman that appreciates compliments, and is comfortable with her sexuality.

[@waynebrinker8095]

@@robinlillian9471 I found Ms. Thompson's talk to be interesting, enlightening, well thought through, spoken and presented clearly. She does strike me as being very intelligent and, although it went unsaid, she undeniably radiates health, grace, and pulchritude which normal people of all persuasions find attractive. Where did I imply that I wanted to fuck "the lady"? (and why did you add quotes?)?? Your comment says more about you than I care to know.

[@lemunbalm3731]

An exceptional speaker! An exceptional presentation!

[@josemiguelmandolesi4199]

EXCELLENT STUFF! THANK U SO MUCH!

[@fuferito]

05:45 While discussing meat, and teeth, _"I'm going to tear this down."_ Nicely done.

[@DieFlabbergast]

What is this juvenile "tear down" phrase? Why not simply say "kill"? You tear down buildings and other structures; you kill living beings.

[@reuireuiop0]

@@DieFlabbergast You might want to watch that again, coz thats what she was about doing : tearing down the old theory that its all about meat, teeth & stone flakes amking cut marks. A theory aint a living being; a structure, yes !

[@devinocampo3189]

This is fantastic.

[@randyhughens5138]

Scientist of the year (R&D Journal) professor James Tour, Rice University. 4 PhD's / 700+ published works / 130+ patents / over a dozen companies founded from the medical field to the oil field. Too many accomplishments to list, but his resume is public. Here's a link to his channel. kzbin.info/door/oldwL6T062LNo65OHngXAQ

[@devinocampo3189]

@@randyhughens5138 why?

[@randyhughens5138]

@@devinocampo3189 Perspective.

[@SakeofScienceChrisKammel]

That was a wonderful presentation.

[@vgrof2315]

Excellent talk. Thank you.

[@randyhughens5138]

Scientist of the year (R&D Journal) professor James Tour, Rice University. 4 PhD's / 700+ published works / 130+ patents / over a dozen companies founded from the medical field to the oil field. Too many accomplishments to list, but his resume is public. Here's a link to his channel. kzbin.info/door/oldwL6T062LNo65OHngXAQ

[@garyk.nedrow8302]

Silly me, I went to an Ivy League school and never had a professor as engaging or attractive as Dr. Thompson. I like that she is speaking of real science here, the factual record, rather than trying to draw speculative inferences about hominid behaviors from inadequate data as many of her colleagues are doing. Frankly, I thought her central point was already the established view of how tool-making arose from earlier tool-using (rocks and sticks being basic tools), but she does tie it all together neatly. One aspect she glossed over deserves more emphasis: if Lucy was on the open savannah using a rock to get at the bone marrow of a large animal, she was most likely not alone. Angry predators and other scavengers would have abounded, and Lucy alone would have been no match for them. Other members of her clan or tribe went with her, driving scavengers away and using rocks, sticks, and vocalization to intimidate other predators and keep them at bay. There is safety in numbers. Then all members of the clan shared in the marrow extracted from the bones. It was a cooperative effort. We probably scavenged in groups, just as we later hunted in groups. This group behavior was likely the beginning of socialization and the sharing of other resources, which are among our characteristic human behaviors. Along with bigger brains, scavenging on the savannah may have also been vital to the start of our cultural evolution 3.5 million years ago. They all likely evolved together.

[@randyhughens5138]

Scientist of the year (R&D Journal) professor James Tour, Rice University. 4 PhD's / 700+ published works / 130+ patents / over a dozen companies founded from the medical field to the oil field. Too many accomplishments to list, but his resume is public. Here's a link to his channel. kzbin.info/door/oldwL6T062LNo65OHngXAQ

[@warrendourond7236]

Maybe when you went to that Ivy League University, all the professors were primarily men, and a few old out dated women. And now that you are probably older than many of those professors were back then, there are many academic hotties. As for being foragers that scared off other predators... I agree that being in larger groups are what made this possible. I also believe this is how we began our progressive advances in intelligence. We couldn’t exploit every kill, so we learned how to predict other animals behaviour and use that against them. Back in the age of Lucy, the competition made us very diminutive. We were smaller then... not physically adapted for the environment we where in, there was no choice but to wise up, and then group up.

[@steveday3383]

Me too, and it was at her 'Ivy League" school. Sadly, it was 60 years ago, and women were not faculty OR students then:)

[@brucepad1019]

I like your comments, second paragraph, we thought through. What's interesting is that now it looks like you dig up the area look for what you want then return everything back that you dont. To me it just means someone who has a new idea will have to go back and dig up everything again. In this case it's all been mixed up. Every item should be recorded, its location, position, description, depth, etc so that you get a true picture or 3d layout of the dig or find. What they are doing is not very scientific,. They find lots of smashed bone in one area, why. What is near this, you bring bone back home to open and feed others or to keep until needed...

[@supernotfunnyman]

@@brucepad1019 archaeologist don't just "return everything they don't use". The literally have multiple specialist from different areas on digs, To try and get as much information as possible, from the excavation at the time. Most archaeologist will make a sample catalogue that is open and accessable to others, that can research the materials later, to learn more from them.

[@busterfrysinger5965]

This and the shoreline gatherers theory are intriguing. Keep in mind that otters use percussion to open shellfish. Some birds drop bones on rocks to get the marrow fat... not the biggest brains.

[@Charbenaro]

Yes however they use a lot of neuro calories.

[@luddity]

@@Charbenaro usually a smart investment

[@tevitamotulalo3909]

Maybe the change in flora allowed the abundance of new fauna that made those primitive behaviors become a lot more profitable...

[@neilnewinger3059]

Flying is much more energy expensive. It is not very likely to have really big brains and ability to fly.

[@mohdnoor9974]

I'm just 10 mins into this lecture and she is excellent!

[@cherylgabriel9551]

Discard

[@cherylgabriel9551]

,o

[@tonybullen229]

Incredibly interesting talk well presented blooming awesome

[@flinkdeldinky]

I really enjoyed the talk. I'd heard of the bone marrow idea sometime ago but it was exciting to hear about the research being done now. What she and her colleagues are doing is super cool.

[@notesfromthemancave]

Excellent talk!

[@randyhughens5138]

Scientist of the year (R&D Journal) professor James Tour, Rice University. 4 PhD's / 700+ published works / 130+ patents / over a dozen companies founded from the medical field to the oil field. Too many accomplishments to list, but his resume is public. Here's a link to his channel. kzbin.info/door/oldwL6T062LNo65OHngXAQ

[@MsKariSmith]

Fascinating talk.

[@anonymousbosch9265]

Fascinating to see a real evolution of thinking in the discipline

[@jelle_smid]

Stumbled on this, clicked on it and could not stop watching/listening. Amazing! My brain wants more! Would it not be amazing if a netflix type of company would invest in a full size show that used CGI to bring this old world and species to life?

[@supernotfunnyman]

Pbs has done some cool things. There's definitely shows out there. Your inner fish is also a great read.

[@jonathonjubb6626]

Ok, I'm a year late but will look further; this is very interesting stuff.

[@randyhughens5138]

Scientist of the year (R&D Journal) professor James Tour, Rice University. 4 PhD's / 700+ published works / 130+ patents / over a dozen companies founded from the medical field to the oil field. Too many accomplishments to list, but his resume is public. Here's a link to his channel. kzbin.info/door/oldwL6T062LNo65OHngXAQ

[@Q_QQ_Q]

lol

[@patriciacruztellez7488]

Very interesting. Thank you, 👏👏👏

[@christopherstube9473]

Good presentation.

[@eymoor]

Brilliant lecture. Finally someone who recognize that hypotheses should be a. Testable AND b. Make sense. The whole scavanging makes sense this way. The first weapons could well be stones too. Throwing stones is basic human skill that can be used to drive hynas jackals and voltures off carcasses

[@rooseveltbrentwood9654]

This is the weirdest episode of “Bones” I’ve seen yet.

[@TheShumoby]

She does look like her. 😂

[@sexysilversurfer]

Yes, now that you mention it. 👏🏻

[@earthmamma85]

Lol. She does resemble her, and Lucy Lawless .

[@roberthiorns7584]

Very interesting. Thanks o sharing. Kind regards, Robert.

[@jacobvardy]

Thanks for putting this on line. It's great for us non-specialists.

[@coinsmith]

Homer Simpson's ancestor: "Mmmmm... Marrow fat..."

[@thelukesternater]

Homer Saipan: mmmm marrow fat

[@Emelefpi]

bashes his finger while holding down the bone: "D'OH!". after his spiky-haired son snickers: "Why you little!..."

[@undernetjack]

Dr. Thompson is one of those humans that seems larger than life somehow. Intelligent, charismatic, well-spoken. Not at all like the average person I see in real life and also different from the movie-star, singer personality. Does anyone else think that?

[@supernotfunnyman]

I definitely agree

[@spaceghost8995]

I see intelligent well spoken people every day. Maybe you need a better circle of people. Just kidding I actually agree with you!

[@davidmorrill2943]

And beautiful

[@gstlynx]

Great talk

[@mgillee1]

Well done!

[@alanreynoldson3913]

I wish I were 18 again! What an intriguing field of study!! A great teacher!!

[@randystone4903]

Very informative talk I identify with as growing up hunting with family who depended on wild meats during the Great Depression. Bull frogs, snapping turtles, and mountain oysters (from our farm) being the more exotic food of our diet. Grandma saved fat next on the stove was a very important flavoring for everything she cooked. That's when my farmer ancestors could burn the 8,000 or more calories they consumed daily. None of them were fat because how hard they worked.

[@fintonmainz7845]

Excellent speaker.

[@viceverse11]

Imagine how dominant a species we could be if we embraced our hunter mentality and carnivorous nature. I don't think we'd be so fearful of the universe.

[@Viper2132]

I know that "sit and think to burn calories" was supposed to be a joke, but chess players can burn up to 6,000 calories a day by sitting and thinking really hard so it's definitely a real thing that happens

[@MrDamon888]

All predators love fat. That’s a first thing carnivores eat, fat and organs.

[@robinlillian9471]

The most nutritious part.

[@robchalmers6278]

Wow, fascinating

[@BigPictureYT]

Great. Thank you.

[@gejost]

love how you explain it so well in layman's terms.

[@theeddorian]

One signature that would differentiate between eating seeds and eating animals that ate the seeds would be tooth wear, and afarensis tooth wear is incompatible with significant seed eating. I lost half a grade point because I compared walking erect to ground level "soaring" the way vultures do. The earliest flaked stone tools are not "complicated." But you do have to be accurate in placing a blow.

[@1369buddy]

Interesting upload

[@helentaylor369]

Love this lady, so passionate about her subject you cannot help but get hooked. She made it very easy to understand and her hypothesis is so plausible when explained like this. This lady is set to impact and create great conversations in her field.

[@mikolajtrzeciecki7979]

I must totally agree. This person is really an amazing specimen and a pride of your species.

[@heffo67]

Wonderful talk. Very interesting but I found it frustrating that she was referencing the board and using a pointer to highlight what she was talking about but the camera remained focused on her on did not show the board.

[@timcarpenter2441]

Very clear, concise and coherent presentation that i found most entertaining and informative. The logic and openness to alternate views and flaws was clearly embraced as a way to move towards the truth.

[@herbertlust7486]

Brilliant

[@rca2245]

So if this significantly proves that fat is essential for health and intelligence why do governments/health organisations promote low fat and that fat is dangerous?

[@zachary4376]

I believe it's because there is no control in having us be intelligent and no money in having us be healthy.

[@velvetindigonight]

@@zachary4376 Agreed. Fit, healthy, happy, balanced people are not addicts capitalism depends on addicts. What's interesting we used to be hunter gatherers and when we started farming they could tithe and tax and dominate us..............

[@zachary4376]

@@velvetindigonight That's the truth, If ever I've heard it.

[@alanjenkins1508]

Blame the sugar industry.

[@zoeydeu2261]

Blame Ancel Keys - godfather of fat is bad for you movement

[@amriksinghtziripouloff8627]

And what about the theory that hominids depended heavily on river's shelfish molusks and crustaceans ?

[@michaelkopala3659]

Amazing!,

[@randyhughens5138]

Scientist of the year (R&D Journal) professor James Tour, Rice University. 4 PhD's / 700+ published works / 130+ patents / over a dozen companies founded from the medical field to the oil field. Too many accomplishments to list, but his resume is public. Here's a link to his channel. kzbin.info/door/oldwL6T062LNo65OHngXAQ

[@viveviveka2651]

Professional chess players burn a surprisingly high level of calories in their chess matches.

[@c4call]

My current trade is fitter/welder and I don't make mistakes often. I stare at the drawings for hours and even days before positioning any part, to make certain I do everything in the proper and easiest order. I joke about how I literally sweat while looking at the drawings. I'm not one of the typical welders who hate and ridicule engineers and intellectuals. I understand the importance of forethought and planning, and critical thinking. Also, my diet is mostly eggs, bacon, grease, cheese, butter, milk, beef and pork, chicken, and maybe potatoes. But mostly diary and animal products. Since I studied nutrition back in high school and became a personal trainer years ago, I recognized the importance of animal products in our human diet. Carbs are generally excessive in most of our modern diets.

[@arvidbehunas1524]

@@c4call I just got my arteries checked for plaque. I would recommend that for you. Also. Good luck to you

[@fleadoggreen9062]

Is this true? It kinda makes sense I remember going to take ase mechanics exams at local colleges and being famished when I was done, more than a exercise regimen!

[@alexanderofrhodes9622]

I don't work out, eat like a garbage troll, and study constantly. I weigh 135 pounds

[@HashFace253]

Feed your brain holes!

[@sardot4960]

"Whoever gets the most food wins." Unfortunately, too many believe that still works. 🙂

[@alexanderofrhodes9622]

More food = more healthy = more sex = more better Ape brain likes simple concepts. Ape brain rejects modern dietary science

[@trackerbuckmann1627]

It does still work.

[@alexanderofrhodes9622]

@@trackerbuckmann1627 Please see above

[@casteretpollux]

Silly talk. Species didnt disappear (unless on small islands) because humans ate their food. That only began in the modern era.

[@alexanderofrhodes9622]

@@casteretpollux Nobody was saying anything about humans eating their food. Weird comment

[@johnbirk843]

Very interesting and excellent work, however I have a question as you mentioned 25% of the energy is used by our brain and fat which has a high calorie content has helped develop that. However I am also aware of our external stomach which breaks down food for higher nutrition value, namely cooking. So my question is did what would you postulate it's fat from marrow which provided provided the extra calories and provided the fuel needed for the development of a larger brain come before or after our external stomach? Now since they were frequent Savannah fires which left carcasses that were in effect cooked animals and hominids would have accesef this and realize that it provided more nutritive content. So I may humbly suggest that the research you have done highlights that access to the fat in bone marrow started the growth of the human brain and with this growth perhaps hominids realized that's something that burned or cooked as we would say provided additional calories making this the next step in our evolution. So perhaps something you may consider if you haven't already just for use of fire occur during the period that you describe or is it after? Scientia Non Domus, (Knowledge has No Home) antiguajohn

[@ralphbabbitt]

Very interesting..makes sense

[@jacobschall9690]

PHX reppin! I love hearing people out of ASU making big research!!

[@randyhughens5138]

Scientist of the year (R&D Journal) professor James Tour, Rice University. 4 PhD's / 700+ published works / 130+ patents / over a dozen companies founded from the medical field to the oil field. Too many accomplishments to list, but his resume is public. Here's a link to his channel. kzbin.info/door/oldwL6T062LNo65OHngXAQ

[@TheDudeKicker]

I spent a big portion of the day interviewing for a technically advanced job and after watching this, I just want to scream "yes! this is who I am looking for!" She is so intelligent and confident. I wish there were more people like her out there.

[@stephanieparker1250]

It’s a real life Dr Temperance Brennan, I love this video! 🎉

[@ruhituncer5943]

Magnificent.

[@jamespurcer3730]

I have seen a documentary wherein a group of chimpanzees chased down a small monkey and collectively drove it into the reach of the leader which was hiding. The leader killed and ate the monkey and shared it with some of the other chimpanzees.

[@robinlillian9471]

Chimps do eat meat, primarily from Colobus monkeys they catch. They also hunt an animal we call a Bush Baby where they can find them & eat insects. However, humans eat far more meat. Humans also eat insects, but western culture rejects that.

[@johannesschroter8984]

Nice presentation, Lara Croft!

[@patrickblanchette4337]

The resemblance is uncanny.

[@conner13.c16]

Where can I find the second part of this talk please?

[@davidwilkie9551]

Anything about food is interesting Jack Horner's work on "Did Dinosaurs Hunt in Packs?" gives a great review on bodily forms and why groups are probably inevitably going to become Herders and Hunters.(?)

[@markbricklin3096]

100 grams of marrow has 84 grams of fat

[@pattismithurs9023]

When we were kids we'd occasionally have fried ham slices for dinner. The big deal was to get the slice with the bone in it. We loved the marrow, and got a "ring" out of the deal too. I don't think I've had marrow since.

[@jevans7666]

Gives new meaning to “fat of the land”.

[@randyhughens5138]

Scientist of the year (R&D Journal) professor James Tour, Rice University. 4 PhD's / 700+ published works / 130+ patents / over a dozen companies founded from the medical field to the oil field. Too many accomplishments to list, but his resume is public. Here's a link to his channel. kzbin.info/door/oldwL6T062LNo65OHngXAQ

[@shuchko]

Excellent speaker and story teller. Wow

[@julianskinner3697]

So exciting!

[@markbates3180]

You don't have to have a stone tip to make an effective spear. Many tropical humans still use 100% wooden spears. They could have been hunters if they had a decent size stick. Why not mention the obvious.

[@peggycearnach8034]

Because she is talking about fossil proof. There’s probably no evidence of wooden tools left now. Not sure if there are fossil records of the grinding or sharpening stones used to get the sticks sharp. Interesting.

[@markbates3180]

@@peggycearnach8034 so you think they went straight to stone points and didn't use a wood spear.

[@markbates3180]

I understand it doesn't make a fossil under most conditions.

[@got2kittys]

A long bone sliver makes a good spear point. Or, a very good dagger. Modern primitive technology uses bone spear and arrow tips.

[@kyledexheimer6548]

The society of primitive technology postulated in 2001 that there was a bone and wood age before the Stone Age, but there would be nearly no record of it as they don't fossilize.

[@katewerk]

I don't get it. I'm certain I heard about the marrow seeking behavior being key to human development at least 15 years ago. Or is it just that it's being attributed earlier in evolutionary development?

[@Gunni1972]

you didn't hear it, you watched "Predator"

[@Rico-Suave_]

Watched all of it

[@BroNumsi]

Percussion Scavenging would be an awesome band name

[@nightfall3605]

Breakaway band name: Pursuit Predators

[@JD-rc6lq]

The Atkins Diet works because it is HIGH fat. The diet that doesnt work is mainstream nutritional advice aka low fat Plant Based. Maybe this is what you meant or more likely a way of discussing this without being targeted by modern nutritionists.

[@krispalermo8133]

Also you have to factor in, what type of working life style you have. Sit at a desk working a phone or computer all day ? Standing in a factory job with barely nothing to do. Or doing line work in a factory where you hand pack 45,000 hair spray cans in your shift, or a dish washer doing the work load of two or three people.

[@luddity]

Yet there are many today who thrive on a mostly vegan diet. With the right gut flora, foliage is converted into short-chain fatty acids.

[@sid35gb]

Atkins is nothing to do with what she’s talking about because a weight loss diet is no good for survival. As for short chain fatty acids they are formed in the gut, when gut flora digests fibre and in 2017 it was discovered the human body is covered in short chain fatty acid receptors so eating a lot of high fibre plants is an important part of human diet and health.

[@bobgrant-beer3020]

Cooking was really important as well.

[@richardpetek712]

The usage of fire was invented a lot later, Homo Erectus did it about 1 mio years ago. Australopitecus Afarensis lived a lot earlier, about 2.9 - 3.9 million years ago.

[@bobgrant-beer3020]

@@richardpetek712 Thank you so much Richard for the info. You forgot the meat on a wire, on a 🪁 Kite, in Lightning Storms Hypotheses. And the Earth is, as we all know is only 6 thousand years old.............. HAHAH. 😂😂😂😂😂😂😂🇬🇧👍 Take Care.

[@richardpetek712]

@@bobgrant-beer3020 You missed the last memo. It's 10 thousand years old. But let's not quarrel over details :)

[@bobgrant-beer3020]

@@richardpetek712 nice one mate. I fucking love you. ❤️

[@goozfrabah579]

Maybe the first form of cooking was dried out meat by the Sun

[@jforrester1208]

My understanding is that the ph of the human stomach is on par with that of scavengers, and would have been protective against bacteria in carrion. Would the low ph have been an advantage for marrow eaters?

[@BroNumsi]

Excellent talk. She knows her stuff AND knows how to make it interesting. A point though: get another camera to shoot the "slides" and cut between the screen and the presenter. It was frustrating watching her enthusiastically show things on the screen, without seeing it yourself.

[@sailordog00]

Mr or Ms camera operator, when she says "look at this" we want to actually look at whatever it is. PAY ATTENTION!

[@oliverave1234]

Yes! Very frustrating.

[@stoyanb.1668]

the operator was a lot more interested in her than the presentation.

[@anonymousbosch9265]

@@stoyanb.1668 tough job

[@dreamervanroom]

Ditto!!!!

[@vaclavcervinka65]

Wow, you talk in a very entitled way considering that this is a free content

[@williammeyer214]

Outstanding presentation. Scavenging behavior preceding hunting prior to brain expansion. I m sure I’ve seen an episode of Big Cat Diary showing a leopard enjoying her catch on a tree branch just crunching away on a femur or two, marrow dripping to ground. Our ancestors attracted by scent chase off leopard , harvest kill, can only extract so much marrow by licking fingers, use percussion, adapting new behavior leads on to greater utilization as resource an they begin to dominate crowd of other scavengers around kill sites? Very thought provoking

[@larryjeffryes6168]

Can the rate and time length of transition from mostly forest to mostly grassland be determined? If it was slow and even enough, the advantage of a moment to moment sense of time. neurologically, might have developed then. Finding useful things along the way and also bringing what you know you’ll need, becomes relevant when traveling from one mini-forest to the next.