Natural Selection and the Rock Pocket Mouse - HHMI BioInteractive Video

[@StingrayStar]

Anyone else have to watch this for their science class?

[@nummies9145]

me and i LOVE DAN AND PHIL

[@realtampa1824]

me

[@skeetsonic4348]

Me

[@gravy7944]

sadly, yes

[@heidipereckas3704]

Stingray ME

[@jacquilines5041]

s/o to you if you watching this for your biology natural selection assignment

[@NekoVenture]

Ayyyy. Yep

[@hannahdean5375]

sam1370 yes😔

[@RealKotoro]

Yes

[@nicksweitzer4217]

Slymptic you got the answers?

[@kalebmoore7630]

I need answers lol

[@motorcyclesarecool1236]

Roses are red Violets are blue I'm forced to watch this And so are you

[@biointeractive]

Heart-warming.

[@tylerhunt3051]

@@biointeractive Even the creator understands.

[@xbrianna.mariex627]

Where waching it right now

[@realsimplyeli]

niceeee

[@jessalyng.2492]

the creator was being sarsactic

[@zoeschlofmitz]

anyone else watching for their natural selection assignment for online school

[@Aceleracers5]

Yup

[@RealKotoro]

Yes. You got the answers?

[@RealKotoro]

Critical Gamers INC. yooooo😂

[@maddiegeyer4095]

...yeah lol

[@benyundt2033]

Lmao bruh I got this thing do Saturday

[@LittleLil]

I gotcha guys, Why are some mice light colored and some mice dark-colored? - The light-colored mice were the first to arrive, but due to a mutation, dark-colored mice started to appear. Because they're more easily hidden, they were able to outlive the light-colored mice and continue to produce more dark-colored ones. Does fur color provide any selective advantage or disadvantage? - Disadvantage: Brighter color furs that don't blend into their environment are easier for prey to spot. - Advantage: Furs that blend into their environment can hide from their prey easier. What role does the rock pocket mouse play in the desert food web? - Prey for other animals that introduce natural selection. EDIT: Looks like there is another work spread that is attached to this forsaken video, How would biologists explain how the mice on the lava flow evolved black fur? Include all the elements you think are needed for a full explanation. - Natural Selection. In the lava flow environment the mice with black fur blend in better, concealing them from the predator's eyes. The tan mice, however, don’t blend in. Because the predators are visual hunters, the tan mice will be spotted more frequently amongst the lava flow and eaten. This will give the black fur mice the opportunity to make more offspring than the tan mice. Would biologists say that the mice changed because they wanted or needed to change? Why or why not? - Because the tan mice were being eliminated against the dark environment of the lava flow. Random mutations happen, and if they’re good (like the black fur) they will eventually evolve into a norm of the population. Feel free to correct me on any of these and I'll edit/change/add them.

[@mesmerizedskeletons]

Oh my god you’re a life saver. Tysm

[@marleyanderson4336]

i owe you my life

[@michaela5516]

THANK YOU!!!!

[@madisonr.7182]

i love you

[@catherinenguyen5819]

Omg tyyy!

[@praveendheergasi2734]

who's watching during quarantine for biology?

[@crimecommiter7712]

me

[@fightluvrespect0713]

Meeeee

[@seanallen8828]

What yo get for number 3 ;)

[@josephshamah2189]

@@seanallen8828 ^^^^

[@simonw3145]

Me

[@georgieuniverseedits6381]

When your supposed to be watching this for science, but you're just scrolling through the comments.

[@heavennn7447]

SoEmoIFellApart _ why did you call me out like that😭😭

[@Scoutcast]

ayyeee what grade u in?

[@xbrianna.mariex627]

Facts

[@realsimplyeli]

haha same

[@Roadz]

@@realsimplyeli yeah lmao

[@littlequail4444]

I know we all have to be here for various biology classes, but kudos to the creators of this video for being able to give a great example of genetic mutations and natural selection within a succinct 10 minute video. It's really easy to see the differences between the wildtype mice and the mutated mice along with their respective living environments and how natural selection seemingly affected the rate of mutation!

[@inyobill]

Not all.

[@slackappu]

this sum crazy meat riding icl

[@sampleshrimp]

"Capturing mice unharmed" *shows dead mice*

[@dill_weed]

He's grabbing by the scruff of the neck

[@stewartjensen2253]

nah, that mouse is straight dead

[@drgjengdahl2709]

Had a needle straight through the thing! Hahaha!

[@williamchamberlain2263]

The ones at 8:10 are dead, but those are a few dozens out of hundreds or thousands from the live-traps.

[@qwerth8662]

It was playing dead bruh

[@fishflavoredicecream]

Rock Pocket Mice: The Snickers Bar of The Desert answer to all my bio quiz questions

[@olick2797]

Funny enough, I needed that answer too XD. Thank you so much! XD

[@MissAwesome-kj8hz]

more like hot pocket mice ammi right

[@eventzond5767]

They come back to heart a comment on a video made 5 years ago, what a legend

[@Roadz]

yo its been a long time mate

[@hazardgoose2352]

@@Roadzindeed it have

[@hmoneyguaptop]

have to watch this for biology

[@carmushroom]

Same

[@victoracosta5357]

+Haleck De Leon same

[@mokutomedia1253]

same

[@PoultnavSOPs]

Haleck De Leon same

[@Thomas-on7qw]

Same

[@Anonymousclue]

I love this comment section. It's the best.

[@kaylaurbaez6375]

Don't mind me, i'm just forced the watch this like the rest of you.

[@yourweirdo2463]

ikr lol

[@isabellaalva159]

lol

[@soytoy7293]

Hi Mary

[@realsimplyeli]

yup

[@josephwoo69]

ight it's cool and all how we're all watching this for bio but are we all just gonna ignore the fact that this guy keeps dead mice in a drawer in his office

[@thesparechannel6580]

that's science babeyyyy

[@nicklee3769]

Awabhabebsd;a;lsls but it's for sci-ence!

[@andrewashton9678]

I’m happy to watch a video for a science class that actually has good production value and is fairly interesting

[@uncleherms1572]

nerd lol

[@jayvantapia2731]

Appreciation alert: This documentary is very impressive and the way they explain every single detail is really stunning especially the visual delivery.

[@biointeractive]

Glad you enjoyed it!

[@twosix2052]

"the mice are gently collected" cut to 10 minutes later with him and a pile of dead mice

[@hunterjones524]

No, no you have a point.

[@syweb2]

I don't see a reason for them to kill all (or even most) of their mice. They could just pick up ones that died of old age or carcasses that predators leave behind.

[@laurenrutledge5168]

I WAS GONNA SAY THE SAME THING

[@kittymerlin5736]

TLDW (too long didn't watch): - Light colored mice live on light colored rocks. A few of them mutated to have darker fur. - This helped them survive on the darker rocks because they were less visible to predators. - Over time, natural selection caused the mice on dark rocks to be mostly dark-colored, because predators were more likely to spot and eat the light colored mice in that area. - The darker mice survived and bred, increasing the ratio of dark to light mice. - There are more light colored mice on light rocks for the same reason. - Mutation is random (the mice just happened to turn out darker), but natural selection is not (they had a higher survival rate if they lived on dark rocks). - Two groups of mice had different genetics that caused the dark mutation, but natural selection had the same process of killing off the ones that stand out. - The fact that something has a mutation isn't good or bad; it's neutral. - The effects of mutations can be good, bad, or neutral. For example, missing a limb is generally a disadvantage, but that doesn't mean that all mutations are bad. I wouldn't recommend skipping the video; these are just some simple notes to help you out. Also, set it to 1.25x speed to save you some time. :) Good luck with your assignments guys!

[@MJTFreeTime]

Nice notes, the info is on point to me. Also, I had something I was thinking about. The video mentioned that if, for example, the trait of dark colored fur gave a 1% advantage, and you started with 1% of the population being dark, then it'd take about 1000 years for about 95% of the population of mice to have dark fur. What I wonder is if this considers the fact that the light-furred mice will be killed on much more regular intervals than the dark-furred mice. And also, perhaps the light colored mice will, over time, "migrate" into the lighter terrain if they're smart enough to not stick around the dark ground. That could mean natural selection (well mutations in particular) could've played much less of a role than was expressed. I'm not saying I don't believe the information presented by any means, it's just that other factors may influence the changes, looking beyond the math at face value; you can almost never take *everything* into consideration with a given calculation (you can get pretty dang close though with some things though). I just thought it's an interesting idea, lol.

[@maeam]

get this to top 🙏🏽🙏🏽

[@shua_jk]

You're a real one!

[@nytemare28]

your the g.o.a.t

[@rodelsamson6016]

Hnuce

[@sydworlds]

hey quarantine biology classes whats uuuupppppppp

[@madisonr.7182]

PLS- THIS IS JUCT SCIENCEIAG

[@alexandraabreucolon4815]

Not my bio grades that's for sure (because of a test)

[@alicia-xm2hh]

I’m not even paying attention I’m just looking at the comments lol

[@marspy6896]

I would not be watching this if we didn’t have online school😂

[@_xDinero_]

for some reason i was done filling out my questions like 4 mins in but finished the video

[@KassiaK]

The dark mice rises

[@thelixir715]

Kassia K for you

[@marleyanderson4336]

Idk who needs these answers, but this was my worksheet for science 1. How did the trait of dark fur first appear in the population of rock pocket mice? Through a mutation in the mice’s genes. 2. Why does the dark-fur trait spread so quickly in mice that are on the lava flow? The light-colored mice were the first to arrive, but due to a mutation, dark-colored mice started to appear. Because they're more easily hidden, they were able to outlive the light-colored mice and continue to produce more dark-colored ones. 3. Do mice that live on the lava flow actively choose to adapt to that environment? Explain. No. Mutations are random, and this specific mutation just happened to be helpful. Natural selection slowly started to eliminate the light colored mice that are more easily seen by predators, and the population of dark-colored mice grew. 4. Consider the following statement: “Mutations are random, natural selection is not.” What does that statement mean? Mutations are random, and won't happen to all mice, but natural selection causes the mice that are lighter colors to die off more quickly than those that are dark colored. The light colored mice are more easily spotted by predators. The dark colored mice were able to outlive the light colored mice and continue to produce more dark-colored ones.

[@desreeisibor5855]

this was very helpful!

[@sadhvika5075]

god bless you

[@coolnamehere2935]

bruh I can't believe my last science assignment is about a man and why his mice are different colors

[@heavennn7447]

Hallucinogenz samee😭

[@niecyuwagboe2255]

At least it’s your last 😂

[@koviiwash8271]

*Flags video for copy right -bam! No homework

[@rockhopper8160]

Kovii Wash lol

[@yuanseaweed4138]

genius

[@fungalviva]

thank you

[@puebesgames8748]

I tried... Teacher assigned entire class more HW

[@VERgeofinsanity_]

yolo playz oh jeez haha

[@youarenowawarepodcast8896]

I've had to watch this video for high school, now I'm watching it for college ayyy

[@leahbrown3432]

You Are Now Aware Podcast I’m watching it for 7th grade

[@divineshiv9992]

@@leahbrown3432 8th

[@cloudycrisps7290]

10th

[@mikehevey7488]

Damn I really got a quiz on this tomorrow

[@iliketowatchvideos7429]

Did u pass?

[@bjorn9744]

@@iliketowatchvideos7429 no, he died trying

[@oswald5086]

I had to watch this for my biology class too, but I think everything in the video is just so fascinating! Really good job with making this easy to understand in 10 minutes, too!!

[@kyndallclarke4102]

"capturing mice unharmed" shows closeup of owl catching and eating mice alive

[@sandracampbell4066]

Outstanding work, super clearly explained. Very impressive. I watched this as a lay person and as an older adult in order to understand how beneficial mutations could spread in a population. I once worked as an educator myself and really appreciate how clearly these professionals explained natural selection and the spread of beneficial mutations within a population. Kudos for brilliant work!

[@tobiasedwards363]

So the rock pocket mouse is a living snickers

[@adrian24591]

+Tobias Edwards Nah more like TWIX

[@tobiasedwards363]

+Adrian Flores then why did they say it was the snickers bar

[@TheSoleToast]

+Tobias Edwards because their comparing something humans eat on the daily to something predators eat on the daily. Which is mice the "snickers" and the predators the "humans".

[@dieselpower0983]

@@TheSoleToast you be taking this seriously lol

[@jonathanowens8280]

Aye for anyone watching this, if you have questions to answer on it or an edpuzzle, open the transcript of the video and then control+f on a laptop and then search for keywords in the question. Makes work so much easier.

[@mannatsandhu2389]

omg thanks

[@itssayeshii4849]

ty gng

[@taelyn9254]

I had no idea people were watching this for school. I just love biology, and "Rock Pocket Mouse" sounded ammusing.

[@zamaiahjohnson5064]

Gotta watch this for 1st period😂

[@louiszeitler8487]

zamaiah Johnson I got this for 4th 🤣

[@kanoah6706]

I got this for 6th lol

[@1deadpanman]

8th lol

[@scottlee8325]

Kanoah670 me too lol

[@user-tc3uw4qx6l]

@@louiszeitler8487 same XD

[@ariand3l]

One has to admit, that is one hell of a nice narrating-voice

[@ariand3l]

It's fun how my biology teacher not only has skipped our last 5 classes, but when he actually arrives to the Online Meeting, he does so only to give us this link and a series of questions before disappearing once again.

[@TheLesserGamer]

Mice eat cheese. Cheese was invented by humans. Therefore, there's no way mice could have existed before humans. So much for the theory of evolution

[@rockhopper8160]

DriveCS Who ever said the mouse came before the human?

[@TheLesserGamer]

I don't know and why are you here

[@leapflame]

Fun fact Mice do not like cheese they prefer seeds, peanuts, and bacon.

[@rileybenedict1804]

noice

[@kusunoki_sushi]

NANI!?

[@brianw.2791]

this is actually pretty interesting, regardless if its for school or not edit: its presented pretty clearly

[@rileyyoung98]

If I counted correctly, they used the cry of a red-tailed hawk for 2 different bird species: 1:15 is a Harris's hawk and 1:51 is a barn owl

[@biointeractive]

Yes, sorry about that, it was our first short film and we weren't catching things like that. The persons responsible have been sacked. (Not really, that's a reference.)

[@rileyyoung98]

@@biointeractive Haha, I'm just being obnoxious - you're all fine! Had to watch this for a class and I thought it was really interesting!

[@larapotgieter6626]

Prof. Nachman is a teacher of mine, and he is still as passionate today about pocket mice as he is in this video (he regularly brings us samples of them). Really enjoyed the content!

[@BOGObiology]

Small error from the narrator at 2:35 : It says "the mice here have evolved". Individuals do not evolve. Individual mice didn't suddenly decide to grow dark hair. Rather, in the lava-filled areas, the predators eliminated the mice with light colored fur. Over time, the surviving mice (mostly those with the dark fur mutation) reproduced and the population evolved to become darker in areas where being darker was an advantage!

[@biointeractive]

I believe that here they referring to "the mice" not as individuals but as the population.

[@hithere2081]

BOGObiology mouse is one mice is two or more

[@zealandl.1372]

Watching this for online schooling during corona

[@maeam]

7:50 I was NOT ready for the mouse drawer

[@biointeractive]

No one is ever ready for the mouse drawer.

[@Katerina03Cricket]

Thank you for somehow making a bio video entertaining, you guys are great at the production process.

[@MinecraftWorld1954]

Biology classes aside, the Pocket Mouse is actually really cute

[@OhioWolf94]

Watching this for my college biology class. Actually really interesting and easy to understand :)

[@biointeractive]

Great to hear!

[@avercado4132]

I'm watching this in science and this is a great (and ADORABLE) example of microevolution!

[@barthalamulevondwark7524]

yo I missed it in the video, does anybody know what role the rock pocket mouse plays in the desert food web?

[@biointeractive]

Snickers

[@barthalamulevondwark7524]

@@biointeractive oh thank you

[@andrewarana9903]

"10/10 would watch again." - IGN

[@hwastars]

okay but do yall got the answers to the packet

[@SUFAN-pt3rs]

Lmfao I gotta do this for extra credit

[@teelee1586]

2,4,3,1

[@aidanemerson5017]

fax

[@shaheerakamin1349]

@@SUFAN-pt3rs me too

[@ruethedaycarly]

how old is the lava flow?

[@logannnn]

that guy looks exactly like who you would expect to have a drawer full of dead mice

[@frankben9324]

This is a great video, thank you for uploading this. It is the most simple and to-the-point explanation of natural selection there is, I use this every year with my class when teaching NS. Cheers!

[@biointeractive]

Glad it was helpful!

[@strangerdanger8343]

Can anyone tell me if this is stabilizing, directional or disruptive selection? Pls

[@crocodile9664]

Its directional

[@paytO8]

Would being able to cook be considered a good mutation?

[@emmagracemoris05]

LOVE HOW EVERYONE IS WATCHING THIS VIDEO FOR BIO

[@axiodile4623]

All the comments are talking about how they're being forced to watch this for online school and talking about how they hate it, but I'm watching this for school, and it's actually really interesting even if you already know a lot about evolution? Like I really don't know what y'all are on about here.

[@343Films]

1. Fur color 2. 1000 years 3. 100 years You're welcome.

[@alpineflora586]

HEY! YOU! Stop reading the comments and pay attention! ily

[@noopythegamer3867]

Hahaha ok

[@freakyskelebone8572]

Lets have a moment of silence for the students who missed the comments

[@jelissan.5569]

someone explain how this has to deal with trna and anti codons and mrna

[@dinohall2595]

"These mice are the Snickers bar of the desert." I should not have found this line as funny as I did.

[@brodymerila3653]

Does anyone know the selective pressure

[@lizcasazza8524]

Why Dr. Nachman kinda....

[@capybarafan200]

???????!?!?!??!

[@graceMaximus]

Ngl.. I thought the same when I saw him lol, especially with his curls- Edit: 8:13.... omg

[@cassie_jean]

@@graceMaximus GIRL?????😭

[@jacobcaron1054]

i love how you can find a wild comment ANYWHERES XD

[@randon19yearold]

Here from biology class, love the epic intro and the cute mice!

[@biointeractive]

Awesome! Thank you!

[@adnanakruskic7299]

Didn't understand anything just had to answer questions for homework 😐

[@TinyTimothy22]

Yessss

[@itssayeshii4849]

i got u guys Explain how you decided which illustration represents the most recent rock pocket mouse population and why you positioned the others in the sequence as you did. Refer to figure W,X,Y,Z Any reasonable explanation is acceptable. Students might comment on the fact that the number of light-colored mice has decreased over time, while the number of dark-colored mice has increased. 1. Explain why a rock pocket mouse’s color influences its overall fitness. Remember that “fitness” is defined by an organism’s ability to survive and produce offspring. An ideal coat color like that of a rock pocket mouse will help it to camouflage with rocks and hence help it to escape from predators. 2. Explain the presence of dark-colored mice at location A. Why didn’t this phenotype become more common in the population? it did not afford a selective advantage to the mice. 3. Write a scientific summary that describes changes in the rock pocket mouse populations at location B. Your summary should include • a description of how the population has changed over time, • an explanation of what caused the changes, and • a prediction that describes what the population will look like 100 years in the future. Base your prediction on trends in the data you have organized. You can assume that environmental conditions do not change over the next 100 years. Originally, location B had a sandy-colored soil. Light-colored mice had a selective advantage because they could better avoid predation. Location B became covered in dark-colored volcanic rock, which means that dark-colored mice now had an advantage over light-colored mice in that environment. Over time, dark-colored mice became more common at location B because more of their offspring survived to reproduce and pass on their genes, including the gene for fur color. 4. Use the data and what you have learned about evolution to explain how mutation is a random process, but natural selection is not random. The mutation which results in a dark colour coat was present in the population before any volcanic activity could result in a dark soil, indicating that the mutation is random. However, the dark-colored phenotype became more common once there was a selective advantage for it, which indicates that selection is not random.

[@nesslig2025]

The only one smalle error is that someone said that mutations are rare events. Mutations are common, everyone has more than a hundred novel mutations at the start of conception.

[@pelonp3691]

Meaningful mutations are rare. Most mutations are useless.

[@SmithdoesMinecraft]

he meant mutations to a specific gene are rare, not mutations in general. Kind of how dying isnt rare but a 12 yr old dying on feb 5th is relatively anyway.

[@gravy7944]

ha! nerd, talking about science like it really matters.

[@dominorborg605]

silent mutations happen all the time. it is very rare that a genetic mutation will actually change the amino acid makeup of a protein.

[@snazzynazzy4085]

When you spend the entire video looking through the comments section so you have to re watch the video

[@NaTHGamin]

Credits to the mice who gave their life for study

[@edenclack8269]

Someone explain why the white underbelly didn't change. The mouse can't change what parts of the mouse should turn black.

[@samuelrynerson3126]

The white under belly allows the mice to keep cool by releasing heat and makes sure the mice do not absorb the heat from the dark, heat-absorbing rock.

[@sqwooshh]

Wonderful. A 10 minute video just to answer 7 questions.

[@biointeractive]

You're welcome.

[@thegigachad4260]

Same here. Exactly 7 questions no more no less

[@dominorborg605]

Bruh I only got 4

[@aryapatel1932]

I got 8

[@inyobill]

Are these animals diurnal? Is there (I speculate yes) still a nocturnal advantage to being darker?

[@somerandomguythatlikesmeme7396]

I know were all here because of online school and are forced to watch it but this is actually really interesting

[@jamishapicou2649]

I understand the natural selection process but how and why did the MC1R mutation happen in the first place? If Darwin believes that the organism that better adapts to their environment tend to survive and produce more offspring then how does a mutation appear or is created to make the organism different?

[@satkinson5505]

Good question, if over time, the lava flow turns a light color, the little mice will adapt again. The ability to adapt is in its genes. Seems like it was created to adapt and survive 🤔

[@khuloodabdulla6912]

Lmao I'm watching this for an assignment but I'm actually having fun

[@_nines8270]

summary of some bio stuff Mutations occur randomly, and the environment does not affect them (directly). The environment DOES affect which individuals survive and produce offspring. SOME mutations can be beneficial in an environment, resulting in more offspring with the mutations, and a higher overall frequency of that mutation occurring. Different mutations can produce a similar physical effect. Beneficial mutations will spread faster if the reproductive rate is very high (such as in mice)

[@PINEFAWKINTREECUNT]

I'm supposed to be watching this for my science class yet I'm drawing and thinking wow these mice are really cute 🥺

[@MegaByteMomo]

aaand we're taking a full loop back around, saw this video a few years ago and I'm back because another teacher assigned it, this comment section has some good memories

[@Nikoloti]

so like since we all here cause of bio... who’s down to share answers

[@ofeliacastro1165]

jadezilla whats the definition of mutation???

[@Maria-em4oz]

@@ofeliacastro1165 A mutation is a random change to an organism’s DNA sequence.

[@buttercup2460]

@@ofeliacastro1165 bruh u coulda googled it 🤣

[@tobyharnish8952]

What is this video about?

[@haha-uj5rj]

Can we get a quick shoutout to Blake Porch! 👏👏👏👏👏

[@biointeractive]

👏👏👏👏👏

[@darkbloodedabsol4981]

Does anyone know what specific amino acids and mRNA caused these dark mice to get their dark fur?

[@Llama-736]

U still need the answer?

[@theperfectmonkey8307]

roses are red violets are blue this was helpful thank you

[@Ash_Di_Angolo]

Interesting, now i see why Mr N attached it

[@eshelb_xd]

Hey, who else is here for biology?

[@iakoekweiaeleas3887]

Me 😂

[@GingiebredVR]

Me

[@kenbellchambers4577]

black mice survive better on black rocks - for this amazing breakthrough six thousand mice lie mummified in drawers. It would have been easier just to spray paint one mouse, and go to Bermuda. I happened on this site while researching mouse fur. Hoping to bust through in the designer - stick on - beaver market.

[@josephphilips6187]

Rock Pocket Mouse? Pock Rocket Mouse? Rock Rocket Mouse? Pock Pocket Mouse? Pock Mocket Rouse? I’m confused!

[@zach9999]

One of the videos of all time

[@d0llyc0re64]

i love how everyones here because of their natural selection assignment for online classes-

[@gregorysagegreene]

Thankyou for giving me two things: 1) I truck thru NM and always thought the lava looked recent. 2) Speciation can happen very rapidly under simple altered conditions and extreme predation pressure. Both 1000 years - so new. 🚛🔥💨 A couple more things: - A) Random mutations are not 'copying errors' - they are an engine of creation. B) Obviously the black mice from different lava flows are a very simple example of 'convergent evolution'. Let's hope they don't all turn into crabs too.

[@farhanhossain3867]

Had to watch for science

[@briennariley9020]

yo does anyone know how to cite this in APA format??

[@enyalynn1496]

Not me watching this to learn about gene mutations rather than natural selection... :): We love AP Biology

[@adamsummers7925]

If you're watching this masterpiece in 2021, you're a legend.

[@Yaya-sz1ef]

the penguin was the best part of this video

[@grocksplash3874]

What is the genetic basis of the trait?

[@williamchamberlain2263]

tanasdubs they tell you. It's a gene that regulates the production of dark pigment in the fur follicles.

[@paige9565]

my mans got a desk full of dead mice

[@laram5891]

LMAOOO

[@AvenueThe5th]

WHERE IS LOCATION A.

[@Scoutcast]

My science teacher did me dirty by forcing me to watch this lmao