Evolution of Metatheria

[@silviu-georgepantelimon1423]

The phylogeny series is so underrated, people should give more attention to this.

[@Seneca_zero]

I used his long phylogeny series as a source for a presentation in uni. Got an A- for it (the power point wasn't that good looking but I only had a weekend to pull it off.)

[@brenton2561]

Questioning the existence of kangaroos and platypuses is what first got me kicked out of scripture class in primary school.

[@whatabouttheearth]

Yes! Taxon Ra is back!

[@thefisherking78]

Lololol 😂🎉

[@itsjustme6632]

KZbin, I hate your placement of ads. Interupting an Aron talk is very annoying!

[@scribblescrabble3185]

adblocker is your friend

[@ll7868]

KZbin doesn't place the ads unless they're set to auto. Any monetized video under 8 minutes can have 1 ad at the beginning, videos over 8 minutes can have as many ads as the uploader wants, they can place them where they want in the video or set it to auto which YT will then place ads at even intervals. Uploaders can ban ads they don't agree with. If you don't want to see ads at all toss your YT app in your Recycle Bin, delete it. Download AdBlocker then "Favorite" the YT Homepage in your Browser and use that link to log in, it works exactly the same.

[@wickederebus]

AdBlock, or pay for Premium.

[@matthewtucker2103]

I used to be bored by this sort of content when I was a creationist. "God made it. I believe it. That settles it!" Now that I've left religion, I see this content and click immediately to listen to it. Science got so much more interesting and wonderful when I pulled my head out of my own ass.

[@Aengus42]

Welcome to reality brother!

[@davemorris3204]

Thx Aron, As an Aussie, and an animal lover, i am always happy for any recognition of the amazing diversity of life that has led to the uniqueness of Australian Fauna, (no matter what the reason is).

[@ThatGuy-ot1gt]

Dude, said it better than I would've. 😉

[@topsyfulwell]

Good morning from Perth everyone. Have a great day 👋♥️

[@petergleeson295]

I have echidna living near me, Bendigo

[@faqatqareen7017]

Yeah a lot of echidna down here near Ballarat too, did find a platypus near a creek near me but sadly it was dead

[@petergleeson295]

@faqatqareen7017 I have never seen a platypus in the wild but they live less than 3km from me

[@uriituw]

Thanks for educating people.

[@phillipmitchell2254]

I stg Quokkas are the cutest little shits

[@Aengus42]

I really hope they know it! Although, I bet at times, they could do without it...

[@Aengus42]

Aron, this is your best "you". I can't tell you just how much I appreciate these series. You look comfy in your skin making these making the transfer of information relaxed & so very effective. Thank you mate! This Eutherian, in a dark, damp, chilly, rural corner of Kent at 06:14 GMT is smiling from pinna to pinna! 👍😃☮️

[@AronRa]

@@Aengus42 Thank you sincerely.

[@Aengus42]

​@@AronRaAlways a pleasure Aron. 😃

[@CBlargh]

1:17 The Greene family reunion. MTG is in the back there.

[@donchristie420]

Her family tree is like a telephone pole

[@beans1557]

She wishes 💀 let’s be honest folk like her stretch the definition of ape

[@davidwatson8118]

Awesome 😎 You show a picture of an Australian marsupial 😁

[@mjb7015]

Love this whole series, but metatherians and especially marsupials have a special place in my heart as an Australian. Many people's favourite marsupial is the quokka, but I would like to submit the Mareeba Rock Wallaby for consideration. Tiny fluffy kangaroo toy that has even tinier and fluffier joeys.

[@OrdinaryCritic]

Now THIS type of content is what I’m here for! ❤❤❤

[@wickederebus]

Agreed, this is way better than his politics content.

[@Lady8D]

I'm really thankful that creationists tend to ask to see ridiculous sounding animals! Many years ago I heard "So if evolution is true, prove it! Show me a fish with feet!" ad nauseum from the creationists in my life - which is why the day I finally saw a video of a snub nosed bat fish walking along the sea floor I realized creationist were full of shit & started really questioning what I'd been told - becoming an atheist shortly thereafter

[@ronm3245]

I always enjoy stories of when someone realizes creationists are full of shit.

[@anthonycrumb5753]

Well done - good for you.

[@cyrussoxlegion]

I thought that was a tree stump on your shirt Aron, and then I realized oh wait that's the "tree of life" lol, that's pretty brilliant actually!

[@Cereal.interface]

evolutionism is emerikahs fastest growing religion... and its killing babiehs

[@Kitsune152]

Creationists like to point out that we don't have fossil evidence of eggs for the early therapsids like cynodonts. Though if they were ovoviparous (which would be an expected intermediary state between egg-laying and live birth anyway) or their shell didn't fossilise well, it obviates the problem. They also ignore that monotremes are basically living fossils in the ancestral state of proto-mammals, as well as the vitellogenin pseudogene fragments both placentals and marsupials share.

[@sympathy4mario]

How many creationists do you think hear Aron say “design flaw” and harp on it “AHA YOU ADMIT DESIGN” and disregard the “flaw” part?

[@taylorroarkpayton]

But if God did it, it wouldn’t be a flaw to them. We just “can’t comprehend” his reasoning.

[@TheSkyGuy77]

Because they're stupid and have stayed as middle schoolers mentally.

[@beans1557]

@@taylorroarkpayton Love love LOVE when creationists go off on how our puny mortal minds can’t possibly rationalize their god... as if that doesn’t inherently make it an irrational belief system 💀

[@scribblescrabble3185]

I always make sure to watch these multiple times in hopes to contribute to the algorithm, and maybe I will even learn something.

[@Jorden.Florence]

6.35 Thank evolution this happened and I'm very appreciative

[@MonochromeWench]

Australia being so isolated for so long presents exactly the sort of scenario that should lead to what we see here.Placental mammals never got a chance to compete in the land down under till humans introduced them and oh boy did things go badly for the native species when the placentals came,

[@australian1018]

Mice came to Australia 4 million years ago, diversified and now most are ecological specific.

[@sciencenerd7639]

so exciting!

[@keltar2007]

Another amazing video! I’ve learned so much about evolution and paleontology from this channel!

[@LetusReason101]

💜💜💜 man you should be teaching in my university. You make things interesting and memorable.

[@robynsnest8668]

The ironic thing, Crocoduck would PROVE creationism and totally disprove evolution. And they KNOW it.

[@babotond]

💯

[@chatzigeorgiougeorge885]

Female horse (spieces 1) and male donkey (spieces 2) produce mule (spieces 3) which is infertile. Where is the intelligent design on this? Evolution theory has answer on this: horses and donkeys come from common ancestor, still though under certain conditions can produce a third spieces, which however cannot survive in the long run (which is why mules are infertile).

[@thefisherking78]

Species*

[@chatzigeorgiougeorge885]

@@thefisherking78 Thank you for the correction.

[@mdug7224]

Wow. I love learning stuff! Brilliant. (I have given up on ark calculations. I can't think of how to get Greater London to float using pitched wood.)

[@jonathanbartlett1098]

I always look forward to your educational videos. You take the time to show the evidence and it is still entertaining. I also love how you put things in context, such as the comparisons to non-mammalian animals. Hurray for placental mammals!

[@machineelf9459]

You make this subject very entertaining. Thank you!

[@franciscovlzqz17]

Thank you Aron and all for these videos.

[@Pablo668]

Great vid as always. That cheerful looking guy at the end of the vid lives on an Island (Rottnest) that is about 19km due West of where I'm sitting. I think there is a small colony of them on the mainland somewhere, I forget exactly where.

[@AronRa]

I got to pet one when I was at the Perth zoo.

[@kilanith]

As always, I love the biology videos.

[@Where_is_Waldo]

I like your shirt.

[@laurajarrell6187]

Aron, damn, I love these, yet almost missed it, early and now. I love the little guy on the thumbnail. I know they had thought them extinc but , but yeah, they found some and are protecting them. Quokka, I think. Too cute! Creationists, like flatearthers, seem to have a big problem with size, time and perspective! Or, they live in areas with contaminated water. Or bad pipes? lol. Thankyou for another great video. 👍🏼🌊💙💙💙🌊🥰✌

[@lvangirardi]

Thanks ,Aron. Your knowledge is boundless.

[@Diyorbek_Ikhtiyorov]

It's really hard to find videos on evolutionary history and analysis of phylogenetic clades, and so entertaining! I would love to see more studies like this. Thanks for your hard work dedicated for lazy folks like me, because I can tell that this stuff requires a lot of reading.

[@redfoxninja3173]

Keep up the good fight Aron the only real way to combat ignorance is thru understanding and education

[@fuzzmakerrecords]

Education? Are you for real? Seriously are you for real? Your World Brainwashes you. Forces you to Comply. Teaches False truth about Men being women with handmade Vagina's. Women who are in Denial about their Virginity. Being told a Hymen doesn't prove she's a Virgin. Ever pressed the Lid of A Jar? That Popping sound once it has been Opened? It is called Tamper-proofing and it says I'm contaminated/untrustworthy.... The equivalent of she may have had another man's Sperm swimming around her Eggs. Understand Simple Man? It was designed for me to make sure my Kids are Most Certainly Mine! Enjoy your Sloppy American Seconds matey. When a Cherry is Popped, it's Popped.

[@trickiification]

Very informative and accurate regarding lineage. thanks so much for your detailed presentation

[@EmmaElaineN]

I really appreciated learning more about this. It helps me understand biology/evolution at my very basic level. It did make eating my breakfast while watching it a bit more of an experience.

[@johngleeman8347]

They broke the mold with the platypus. Such a unique animal. X3

[@thomascanfield8571]

It's so wonderful we have Australia, New Zealand, The Galapagos, Madagascar, Hawaii, Siri Lanka, and so many other island laboratories to explain natural selection. Too bad millions won't pay attention.

[@thefisherking78]

Good stuff, thank you! It's always fun learning more about our own family tree 😁

[@latheofheaven1017]

Love your evolution videos, Aron. This is a great explanation of a fundamental part of mammalian evolution. Thank you!

[@Cereal.interface]

its crazy how this has grown interest in evolutionary theory

[@danbeaulieu2130]

Good morning Aron Ra. A glorious morning it is. Thankyou for this video, which explains far better than I can., the evolution of marsupial mammals

[@fatoldguy9046]

F#%kin' awesome video Aron, loved this. So now we're both 62 eh? LOL

[@DeruwynArchmage]

I’d argue that every animal you could point at is part of a transitional species. It’s a smooth(ish) graph from one to the next, and there’s basically never a big jump that can be seen. I think that’s part of the problem. People imagine a Pokemon style transformation rather than a thousand generations of slow divergence.

[@KianaWolf]

I like the way Erika / Gutsick Gibbon describes speciation, as a color gradient where you can't point to the one pixel where it went from definitely red to definitely orange. Because clades are observable facts, but species are just convenient nomenclature for discussion. Speciation is a perpetual process.

[@DeruwynArchmage]

@@KianaWolf that’s better than the graph thing. I was trying to think of a metaphor and wasn’t particularly happy with anything. Thank you!

[@beans1557]

Precisely, it’s a question of scale. They want easy to digest, simple, compartmented information. Same reason it’s usually the same folk who shit themselves thinking of social constructs or the changing of language or cultural creation. Gradients are hard

[@alasdairwhyte6616]

ok, "can you show me an intermediate form betweem you and your parents!"

[@LeChat084]

Clair et rigoureux. Merci !

[@eldaduzman9883]

a tiny correction to 04:27, mammals are not the only clade that produces "milk", lactation occurs in some species of birds, but obviously in a very different way (convergent evolution)

[@noone3216]

As always: good shit, man 🤘 Love the evolution vids!

[@aussie405]

Quokkas! The happiest marsupials.

[@Ozz04]

'New and improved Placentalia' That's today's phrase of the day.

[@DarkRanger1975]

Nothing like another educational video, thanks Aron Ra for all of your work.

[@exoplanet11]

The diagram at 3:40 is very useful

[@FrozEnbyWolf150-b9t]

Seeing the apistevist logo perfectly dot the eyes and nose of the quokka got a laugh out of me.

[@JackBurton.Trucking]

Love the self indulgent smug smile at the close. Just gonna leave that there

[@jameswright...]

If you see happy well educated correct as smug that says more about you.

[@JackBurton.Trucking]

@@jameswright... James, you appear to be identifying 'smug' as a pejorative. It is not. I would encourage you to take a moment to Google the word and familiarize yourself with its definition. In the meantime I'll give you the benefit of the doubt and presume English is not your primary language

[@jameswright...]

@@JackBurton.Trucking No I don't 😂 I'm saying that you see what's not there 😂😂 If you think correct is smug😂😂😂 Because he's not being self-righteous he is modest has no ego! And he has facts to back he's right not just think he's right 😂😂😂😂 So it's you that missed the sarcasm and point of my English 1st language that you didn't understand 😂😂😂😂😂

[@RadioactiveSpider-tp1xs]

Yes , we need more educational videos like this

[@alastairfults1420]

Love your educational content. Thanks !

[@klipkultur3680]

9:00 Life is so powerful...

[@thomascanfield8571]

I started watching because of the Rock Hyrax and how it is remarkably related to the elephant. Thats ok, love Aron's lectures anyhow.

[@THATGuy5654]

My personal theory is that the pouch formed while they were still egg layers. Early mammal sits protectively over her eggs. Predatory dinosaur slowly approaches. Early mammal reaches into pouch and pulls out a gun. "Whoa, whoa, be cool!" "$&@% off." "I was, uh, just going to congratulate you on the eggs!" "Sure. Mazel tov. Now $&@% off." "I'm going, I'm going."

[@mre6330]

Thanks for the education learning more every day.👍🏻🇦🇺

[@TheZeroNeonix]

I like how those two white dots of the logo at the end cover the eyes. It was probably an accident, but it caught me off guard.

[@AronRa]

As I was editing, I noticed that it was close. And that bothered me. So I positioned it to make it match. ;-)

[@TheZeroNeonix]

@@AronRa - Many thanks for that. lol

[@ianmason2964]

Isn’t a good question to ask them “why? Why do you think we are talking about evolution if it’s false? Read what I’ve read, watch what I’ve watched. Then tell me where I went wrong. Someone is lying, either on my side or yours. If my side lies, why, if your side is lying, why?”

[@sadyugkefdkquskdSG]

Thank you for a break from politics and 15 minutes to enjoy observing god or natures creation

[@vianneyb.8776]

Metatherians are one of my favorite clades because of how familiar and yet how weird they are to us Eutherians (although I like Monotremes even more)

[@waveman0]

this is why I watch your video, Aron, It is always informative and well-researched, unlike any of your detractors.

[@samartzis2000]

Meta - After , Theria- beasts or larger animals. Greek is so beautiful.

[@theflyingdutchguy9870]

you forgot about a modern mammal thats colder than monotremes. naked mole-rats have a body temperature of about 20°c at the low end. they are the only known "cold blooded" mammal

[@AronRa]

Did not know that. Everything I read said monotremes were the coldest.

[@theflyingdutchguy9870]

@@AronRa really shows how fckng weird naked mole-rats are😂

[@ThePlumAbides]

What's this? An Aron Ra video that doesn't end with a puntastic dad joke? 😮

[@EnkiduIX]

Mitochondrial marsupium: is that where I keep my mitochondria, or is it where they keep me?

[@pep_bubba]

Wonderful explanation of a process that I didn’t know about yet.

[@BlackBanditXX]

Mammalia really is a fascinating clade! I'm glad to be one!

[@smadaf]

Thanks for making stuff like this. It's fascinating and inspiring, and a welcome break from the stress of religious and political arguments.

[@australian1018]

Nice video, sthenuridae are an interesing lineage of marsupial.

[@leviathanmdk]

For his unholly blasphemere i grant a comment so he may continue this fantastic series phylogeny.

[@Diviance]

I like how the creationist comments can be summed up by "Let me explain to you how I didn't watch the video and how I don't understand the topic of evolution in any way, shape or form."

[@KianaWolf]

Ooh, woke up to a new addition to one of my favorite series on the internet!

[@IWouldLikeToRemainAnonymous]

Great video! But I kinda thought you would go through the phylogeny of metatheriawith all the daughter cladds that it has. Please say that you’re working on that!

[@AronRa]

That”lil be Part 2.

[@John-Paris]

This is so awesome 💯

[@pencilpauli9442]

So cool Science is way more wonderous than a literal interpretation of mythology. Love mythology too, fwiw, which means I get the best of both worlds and realise that life is fucking incredible!! lol

[@tammyburton8289]

Aaron rocks

[@phillipmitchell2254]

Aron*

[@skepticsinister]

Like saying R N.

[@Lady8D]

I believe you meant to say Aron Rawks! 🤓 I'll see myself out 👋🚪

[@musicauthority674]

In humans and some animals the ability to have an ambilical cord. allows the fetus to gestate longer. which allows the fetus to be fully formed at birth. although still quite dependent on mother.

[@mccsnackin]

I love learning! ❤

[@AthenaSchroedinger]

Love this series!!

[@TheGreatTake]

Thanks, brother!

[@hermannhinterhauser1227]

I think this is also the point where the differences in size between males and females (mammals and marsupils) will kick in. Females need to store biomass to grow and feed their offspring, while the males don't. This helps the males, by having more biomass, to grow their muscles and generally in size.

[@juanausensi499]

As a rule, males are bigger when they compete for the females. When they don't, they are usually the same size or smaller.

[@chrisstargazer5866]

You're the best bro!

[@samsngdevice5103]

Why doesn't the bible say What day did god create bugs?

[@russellarson4690]

I needed this, thanks!

[@ungulatemanalpha]

i love metatherians!!

[@tallyhorizzla3330]

I can understand why Creationists deny Evolution,it's a lot easier to say God made all the animals as they are than try to wrap your head around all that.

[@birdman03190]

loved this video

[@NormanInAustralia]

Thanks!

[@mmeis2389]

A seed when conditions are right will produce a root and leaf bud with a water input, and energy to locate a light source. Do seeds in essence have an "yolk" as well? Sorry bio question. Interesting and excellent - ty sir.

[@JDODify]

Is that a pic of a quokka at the end?

[@MindsEyeVisualGuitarMethods]

I never meta theria I didn't like

[@thefisherking78]

Baduntiss

[@ksbrst2010]

Cells don't have a magical 3D map. They only have counters and the know what kind of cells they touch and how to react to certain states.

[@TheTrolllll]

watching this while eating was a mistake

[@John.0z]

I came upon a variation of the refusal to accept the presence of transitional creatures in response to an earlier video when I offered the Australian monotremes as examples. He just said they were not the proof I thought they were. Even when I stated that they were not proof, but constituted evidence. I consider it telling that this person uses a YT handle of Dr. [etc], yet I cannot help but wonder if there is any higher learning involved in his use of the title?