The Evolution of Lactose Tolerance - HHMI BioInteractive Video
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- Опубликовано: 27 сен 2024
- All adult mammals but humans are lactose intolerant. Follow human geneticist Spencer Wells, director of the Genographic Project of the National Geographic Society, as he tracks down the genetic and societal changes associated with the ability to digest lactose as adults-or lactose tolerance.
Explore how evolutionary biology and cultural changes led to the evolution of lactose tolerance in this educational video.
Free teaching resources supporting this short film can be found at www.hhmi.org/bi...
so all the bio classes watching this huh?
Guess so lol
anthropology lol
Here I am
yes sadly
LOL yea
Who's here from your virtual bio class?
correction: who *isn't* here from your virtual bio class
Damn is every bio class watching this?
Mia Andrea yup😂
must be lmao i'm in covid online bio watching this
yes
even in other countries lol, I'm watching for my bio class in Mexico
seems like it xD
Hey, you in your biology class.... stop scrolling through the comments and watch the video
No way...
smh I'm here for anthropology
i feel attacked
@@RiceeHD Me too. :/
For my fellow students:
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2:33
Cat: wtf bro :(
;(
I wonder how the cats back feels carrying the whole video 😔🤚
This made me laugh way to hard out loud in class
The video was a fascinating watch, especially the part where it showed that lactase persistence evolved differently across various populations. It's incredible to think that something as simple as drinking milk could lead to a genetic adaptation. The explanation of the genetic research was clear and accessible, making the science behind lactase persistence really come alive. It's also quite intriguing to see how cultural practices like dairy farming have shaped our genetic makeup, highlighting the close relationship between our environment and biological evolution.
Another standout moment was learning about the archeological evidence that linked the use of dairy in ancient pottery. The idea that we can trace back the origins of milk consumption through residues in old pots is just mind-blowing. It makes you appreciate the detective work scientists do to piece together our history. This video really underscored the notion that human evolution is as much about our cultural developments as it is about our biology. The gene-culture co-evolution concept is a reminder of how our advancements and adaptations are deeply intertwined.
The world needs more people who are passionate about obtaining knowledge about these things. Intellectual rock stars :)
What a great video! Thank you!. This makes studying for finals much more interactive and productive.
ok
that cat is the bomb
Came here for class but that was very, very interesting. Thoroughly enjoyed.
Glad to hear it!
If your in science class right now you might want to stop looking at the comments and get to work! C: Oh hi class mates of 2022!
im class of 2022 to my dude what school and ok i will
2023 smhh
@@tonightiwillsee freshmannnnnnnn
AYYYE! Class of 2022! How y'all doing with alls that's going one?
Class 2024 actually but hi
I'm so happy I have this mutation. Cause eating ice cream, desserts with cream, sweets with no consequence of bowl problems is awesome
I think some fruits, berries and seeds “want” to be eaten to aid in their dispersal and germination.
Im watching this for my 9th grade bio class
Imagine still being in 9th grade..
This is so weird. I though there'd be more people who are lactose tolerant than intolerant. Which makes me the 1/3. Additionally I'm Asian and Asians are the race that are most lactose intolerant. About 90% Asian adults are lactose intolerant, which makes me the 10% who are not. I am so blessed I'm lactose tolerant because I LOVE dairy products.
I find it odd how rate lactose tolerance is in Asia. Central asian nomads, like the people of Mongolia, consume tons of dairy, as do South Asians, especially Indian people. I wonder if these are newer cultural practices, and that's why lactose tolerance hasn't become pore common?
Lactose tolerance in India is ~50%, more than in Southern Europe.
ok
Ikr I don't know one person who's lactose intolerant and I knew a lot of people have it but 2/3?!
AYE same!
'It's the only "food" made with the intention of being consummed.'
Couldn't have better said it, wd
Awesome! I'm lactose intolerate. It sucks :( dairy products are my favourite products!
Then switch to plant based milk , like ones made from soy , almond, coconut , hemp , rice etc.., some of them do actually taste lighter and better than cow milk and don't cause the bloating and stuff 😎
Relatable
It scares me that some day i may not be able to eat ice cream >.
I watched this video in class but I decided to talk so I did not pay attention to any of it and I’m regretting it now because I have to rewatch the whole thing 😑
Well done and well directed video. Thank you!
The symptoms are terrible nausea, extreme stomach cramps, diarrhea, extreme gas benadryl helps the diarrhea and cramps
Loved the information and great story telling at the same time.
On my strong paternal side of my D'Auria family on my long lineage, I have: Lactose-Intolerance as I only drink soy milk and almond milk---Not cow's milk and other dairy products. Remainder that I am the Second-Generation Italian-American as the Sephardic Jewish in a fact.
I was lactose persistent until 57. I have some Ashkanazi genes.... I wonder if this means I have another mutation....
I think I have lactase persistence, never had diarrhea from drinking fresh milk in large quantities.
This was really interesting, thanks
what type of natural selection would this be? Example: stabilizing, disruptive, directional?
shout out to my bro evolution for allowing me to drink milk in my tea
That was awesome. learned so much.
Glad it was helpful!
Shut the hell up we all hate bio it’s alr
I love it. I'm lactose persistence!
I'm lactose intolerant as I recently discovered with a test .All my life I was avoiding milk and yogurt because I could see how my body reacted when I consumed dairy products. I don't have the mutation after all.
Same here.. After leaving milk I can observe me
You can have lactase infused dairy.
And lactase tablets are easily available too.
5:27 Mr Terwilliger, there's a problem down to the ce-ment mixer!
Damn man’s really downed that whole glass of milk and went on with his day.
that's what I thought
This was Awesome
i know cats really loves milk. my cat already died but during her adulthood i still give her a small amount of sterilized milk sometimes. i am aware that adult cat actually doesn't need milk so i see to it that she only get milk few times.
😔✊. bio 106 class where u at
4:30 wow just forget about half the world ok i see how it is
When you so embarrassed about the entire America's that you don't even include them as being on the same planet.
Fantastic!
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Not "all" but almost all. Some are born without it and for most of human history, they died.
hello fellow students in bio
So cool how they got Will Ferrell to do this for us.
Have an question: how lactose tolerance is an example of natural selection in humans?
You should definitely watch the video, because your question is explained within it.
not if there is lacto free milk lol
@@beaulieuc8910 lactose free milk wasn't in food stores 2000 years ago 😭
I’m going to show this to my anti-evolution friend. Let’s see if he can deny evolution happened, when I show him evidence of it. Thank you so much for this video.
Well, this isn't evolution on the scale that would impress your friend most likely. Technically, the gene for lactase production already exists in all humans, it's just a matter of if the gene expression stays on or not. That kind of thing can happen with lots of stuff, such as how certain animal fur changes color based on temperature, and that's not the body developing something new that didn't already exist. Good luck.
@@someguyusa
I partly agree with you, but evolution is defined as change in the heritable characteristics, passed on to future generations. So this does count as an evolutionary change, but not the strawman version that he will likely be looking for.
Hello fellow bio students
shout out anthropology students
4:15 the rest of the world: baby, i'm not even here
Curious to know what the allelic frequencies are in the world's largest producers and consumers of milk: folks in the indian sub-continent, where dairy trumps the consumption of the cow.
Shout out to vargas ✊🏼
👊
I'm one of the most lactose tolerant people that I know. I can literally drink a full litre of milk at once without experiencing problems afterwards. Except getting fat, of course. ;p
ur a full litre of milk ;p
You must’ve come from a culture that domesticated cattle thousands of years ago. I’m from Italian ancestry which has been drinking milk and making cheese for I don’t know how many generations.
Same! I love that as an adult I can eat and drink dairy. Ice cream is literally my fav thing! And according to ancestry I am like 99% Northern European.
not me being lactose intoleraant eating ice cream while watching this video. i want to throw up rn💀💀
Gillibert AP BIO 2021-2022, anyone??
Watching this as I eat yogurt and drink a smoothie
i hate being lactose intolerant lol i want to enjoy my seasonal pumpkin cheesecake ben and jerry's in peace
who cares lol im gonna eat some while watching this
are we all doing bio homework rn?
Watching this for biology class 🥴
Anyone in anthropology right now? lol
I am a 58-year-old Canadian female Chinese heritage and I drink open 4 litres of milk per week, Yes I love my milk 🥛
thank you
where's the Americas in that map? are the Brits salty after 250+ years?
12:52 Well it's not quite the only food produced to be consumed, right? Isn't honey meant exclusively for consumption?
I'm the only one who thinks that dude at 0:55 lookin like a younger Chris Hansen
It was the Vikings they went all around or flat the world and spread the lactose gene.
Eso de ver que los gatos adultos son intorelantes a la lactosa me ha roto la infancia. Muchas gracias por arruinar infancias
poor cat just wants some undetectable sugars 😿😿2:38
What about casein intolerance?
2:32 That poor cat
Drinking milk, that you once drank, is not microbe to man evolution. It is a simple mutation. A mutation that you already possess.
what about insertion mutation.
is that evolution?
what about billion insertion mutations over a course of billion of generations?
would that be evolution
If you're in Bio 40 C watching this.... then AYYYYY THOOOOOO!!!!!!!!!!!
4:32 don't be shy show the rest of the world.
Crazy how all of our boi classes use this as an excuse for work
What's up my bois on Mrs.Westons Bio :)
The Vegans, which say meat is unnatural for humans, should look at those hunter-gatherers
the hunter gatherers ate meat cause they didnt know how to cultivate crop. Why dont you go back to the stone ages then if you want to do everything our ancestors did??
In the "map of the world" the makers of this video forgot America the continent
I know it's not that serious or relevant in this context, but I hate it when people say Tanzania as Tan (like sun tan ) zania instead of Tan (pronounced Tahn) zania, that's not how you say it.
Kind of like how when people pronounce Germany, "jer-min-ee" instead of "doisch-lond"?
My father and I are both lactose intolerant and yet, my DNA test said I should be lactose tolerant...some other gene involved no doubt.
FS Bio10 fall 2019 here lmao
I cant handle any dairy products
14:12
everyone says they are here for a bio/anthro class but not one soul said hey let me give some ppl some answersr real quick natural selection is coming for yall and im so serious
watching this in bathroom 😬
Who here goes to RJ
Mi interrogano su sta roba
sup LSU bio lab students
Here
My teacher made me watch this boring video against my will :(
when you become lactose intolerant it is interesting one day
5:09 Sweet home Alabama!!!
There is no sign of incest in that punnet square
One good trate for haveing paile skin
did saw the video? Dark skin people also got mutation (different mutation ) which does same. Skin color is not relevant.
venkata kishore yea but almost evey one that has pale skin has this mutation
+Chad Hansen That is relation but accident. there are many white adults , who can't drink milk(skin doesn't helped them). I understand you might have wrote your comment as joke. no problem.
Kishore Venkata the vast majority of northern Europeans have this trait that's what I was saying
Does that pale skin include Eastern Asians?
I am for Indian lactose problems how to solution please
Rohine Raut no solution
Rohine Raut most Indian are lactose tolerant
There are pills you can take before ingesting dairy products, these have lactase, which will counter your lack of it for a few hours!
Here cause corona no cap
Gator Anthropology!
𝘿𝙪𝙩𝙡𝙣𝙞𝙫 𝙩𝙞𝙤𝙤𝙜𝙖𝙩𝙩𝙡𝙮𝙜
mommy milkies
Zoo102 squad
The earth is less than 10,000 years old and man has been here since the beginning.
ha ha punny name. Also, I thought it was only 6,000 years.
Cells be like
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Omg i never saw it like that before
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oo oo
The fact that I’ve had to watch this for 2 separate bio classes
S/O to all my Fresno State peeps watching this for Bio 10 😤
yessss
ayoooo
I'm craving milk all of a sudden
ok
@Fordfan07 oh fk
Pov:your supposed to be watching the video for bio but your looking at the comments
I read some comments about their bio classes, lmao I came here because i'm lactose intolerant and i want to know more behind it.. ❤😂