Coming from a family that believes that the world was only started 5000 years ago I can def say thank you for this content. Intuitive but still explains the subject matter. Not academic and condescending like some lectures. World needs more vids like this
I love that you go beyond just superficially mentioning the conventional lactate dehydrogenase adaptation and explain some of the more obscure/interesting ones. Thanks for the video!
I've been watching a lot of Prof Hawk's bargain basement aesthetics video lectures and they're excellent. I've recommended them to friends interested in this stuff. They're particularly good b/c they don't require much back knowledge but still explain the complex and fascinating story of "us" so well. I really liked the Denisovan and Neanderthal lectures as well. Thx for posting!!
Wish more people would slow down and watch these videos! 👌 Very informative and easy to understand for most individuals regardless of educational level.
(Another) great video. The lactase persistence phenomena has always puzzled me as the detrimental phenotype of lactose intolerance (not to be confused with a milk allergy) is not terribly debilitating. Additionally, in terms of evolutionary time, dairying technology that employed bacteria to break down the lactose was effectively coincident with cattle/goat/sheep domestication Therefore it doesn't seem like the kind of thing that natural selection would have cared that much about unless there's more to the story...
you have to think in terms of small localized villages of hunter/farmer hybrids. in cold regions a long or xtra cold winter could clear out anyone with less efficient digestion of the one food available fresh all winter basically
@@falsename2285 in the bronze age, where food would have been scarce, especially in times of winter or drought, any ability to preferentially benefit from the fats and proteins in more readily available animal milk would have been a tremendous boost to survival chances.
Selection pressure likely peaked when it permitted a child, recently weaned because of a new sibling, to survive on cow, sheep or goat milk. Those who did not happen to have two copies of the new allele, did not survive as frequently.
also ,agter weaning ,they got their food by ..gathering veggies ...and starting to learn whats ediable and toxic. each mistake is a serious demerit, dehydration and improper diet , both hard to avoid ,
Your presentations bring together so many aspects of human evolution, such as how various species interacted. As a geologist, I am aware of very important changes in land surface since the last glacial maximum approximately 26,000 years before present. So basically, much of hominin interbreeding and cultural exchanges occurred prior to when major meltwater pulses wreaked havoc upon many cultures. Glacial and interglacial intervals and consequent sea level changes with their timing are important enough to warrant specific studies of hominins against the background of ice and ocean changes. Also, discoveries of cultural constructions along sea bottoms worldwide should help to improve archeological knowledge.
I have a mutation that causes my insulin receptors not to function. I was a research patient for many years in Boston and I need help. I cannot get them to call me return an email even when I was living overseas I don't know if they have named it yet as I am the only one with it and dr. Jeffrey flier the dean of Harvard Medical School was the first one who began the research on me. :-(
I had my DNA tested very early after it became available. I found it terribly boring. If you throw brother in there, (since females only get mitochondrial DNA results) can they be combined so I get my dad in there?
The addition of genetic information from a full blooded brother would give you some info about your shared father but not full information about his contribution to you specifically since the actual sorting of chromosomes is unique to each child (except for identical twins, which would not apply in your case since identical share gender)
I am a mix of Swedish, Dutch and Prussian ancestors through my grandfathers and English, Scots and Irish through my grandfathers--so I have white blond hair, very fair skin and have always been very stocky and strong which would be an advantage in cold climates
MattyTheBuff, Americans are still the only people to ever walk on the moon, you pathetic loser. 😂 It’s an objective fact that the USA is the greatest country that has ever existed. Notice how you’re speaking our language?
Clayton Shearer He means that when finding someone that leans toward not believing their ancestors arose in Africa mentions this around him, he feels it necessary to show them they DO spring from such ancestors. Not to help educate them, but to stir shit.
It all depends on how the scientific results are interpreted to support specific social paradigms. If human genetics have been changing rapidly over the last 20000 years from a common origin - that actual supports a racist view of history.
@@barbaravick5634 Europeans don't come from Africa they have nothing to do with black Africans they are a separate species ua-cam.com/video/kxhAFzqdcO4/v-deo.html
Coming from a family that believes that the world was only started 5000 years ago I can def say thank you for this content. Intuitive but still explains the subject matter. Not academic and condescending like some lectures. World needs more vids like this
I love that you go beyond just superficially mentioning the conventional lactate dehydrogenase adaptation and explain some of the more obscure/interesting ones. Thanks for the video!
Well explained. Thank you for that
I've been watching a lot of Prof Hawk's bargain basement aesthetics video lectures and they're excellent. I've recommended them to friends interested in this stuff. They're particularly good b/c they don't require much back knowledge but still explain the complex and fascinating story of "us" so well. I really liked the Denisovan and Neanderthal lectures as well. Thx for posting!!
It amazes me how much new info that genome discoveries have contributed to understanding our world today as well as ancient history.
Muito obrigado pela excelente palestra!
That was a really good presentation, thank you.
Wish more people would slow down and watch these videos! 👌 Very informative and easy to understand for most individuals regardless of educational level.
Awesome video
Your videos are very informative. Totally interesting. I'm amazed there are not more thumb up marks for this video.
(Another) great video. The lactase persistence phenomena has always puzzled me as the detrimental phenotype of lactose intolerance (not to be confused with a milk allergy) is not terribly debilitating. Additionally, in terms of evolutionary time, dairying technology that employed bacteria to break down the lactose was effectively coincident with cattle/goat/sheep domestication Therefore it doesn't seem like the kind of thing that natural selection would have cared that much about unless there's more to the story...
you have to think in terms of small localized villages of hunter/farmer hybrids. in cold regions a long or xtra cold winter could clear out anyone with less efficient digestion of the one food available fresh all winter basically
@@falsename2285 in the bronze age, where food would have been scarce, especially in times of winter or drought, any ability to preferentially benefit from the fats and proteins in more readily available animal milk would have been a tremendous boost to survival chances.
Small advantages, long time frames.
Think cheese...the food that comes from milk and can be stored during cold winters when other foods are not plentiful.
@@donalhartman6235 I don't think there is very much lactose in cheese. I believe that it is primarily in raw milk.
At last, an excuse for my stinky armpits! Thank you John!
Unless you do something about it and find your self a Asian partner,
you are to be blamed for all stinky armpits in your families future.. lol
Selection pressure likely peaked when it permitted a child, recently weaned because of a new sibling, to survive on cow, sheep or goat milk. Those who did not happen to have two copies of the new allele, did not survive as frequently.
also ,agter weaning ,they got their food by ..gathering veggies ...and starting to learn whats ediable and toxic. each mistake is a serious demerit, dehydration and improper diet , both hard to avoid ,
I really want to learn more about this. Can you give me a reading list, or tell me what university courses might have more of this information?
What a great talk! Why does it only have 15k views.
Your presentations bring together so many aspects of human evolution, such as how various species interacted. As a geologist, I am aware of very important changes in land surface since the last glacial maximum approximately 26,000 years before present. So basically, much of hominin interbreeding and cultural exchanges occurred prior to when major meltwater pulses wreaked havoc upon many cultures.
Glacial and interglacial intervals and consequent sea level changes with their timing are important enough to warrant specific studies of hominins against the background of ice and ocean changes. Also, discoveries of cultural constructions along sea bottoms worldwide should help to improve archeological knowledge.
So what does gain of function gene modification fit into what you are saying?
Third of your videos i have seen now,
i can just as well subscribe :)
Extremely important. I should write a book to post a comment about it.
I have a mutation that causes my insulin receptors not to function. I was a research patient for many years in Boston and I need help. I cannot get them to call me return an email even when I was living overseas I don't know if they have named it yet as I am the only one with it and dr. Jeffrey flier the dean of Harvard Medical School was the first one who began the research on me. :-(
I had my DNA tested very early after it became available. I found it terribly boring. If you throw brother in there, (since females only get mitochondrial DNA results) can they be combined so I get my dad in there?
The addition of genetic information from a full blooded brother would give you some info about your shared father but not full information about his contribution to you specifically since the actual sorting of chromosomes is unique to each child (except for identical twins, which would not apply in your case since identical share gender)
I am a mix of Swedish, Dutch and Prussian ancestors through my grandfathers and English, Scots and Irish through my grandfathers--so I have white blond hair, very fair skin and have always been very stocky and strong which would be an advantage in cold climates
Love my Saint Andre Brie thank God.
Scythians...but who am i
Maybe agriculture was a bad idea.
At 13:00, I'm East Asian and I've wet earwax, but no body odour whatsoever and very little body hair. So' I'm kind of an odd ball.
Buddy, take a shower every fucking day. I guarantee that you have body odor. JFC....
@@kevin6293 huh? He said he doesn't have body odor... And taking a shower doesn't always magically eliminate body odor lmao
MattyTheBuff, you sound stupid.
@@kevin6293 imagine an American calling someone stupid...
MattyTheBuff, Americans are still the only people to ever walk on the moon, you pathetic loser. 😂 It’s an objective fact that the USA is the greatest country that has ever existed. Notice how you’re speaking our language?
Lactose intolerant and longing for ice cream ☹️.
We have show these videos to racist people to realise they are not so special
Clayton Shearer
He means that when finding someone that leans toward not believing their ancestors arose in Africa mentions this around him, he feels it necessary to show them they DO spring from such ancestors. Not to help educate them, but to stir shit.
That is Ego Mind thought and it would require Conscious Application of Thoughts -
It would require a desire to change.
Melanie Willard someone who judges others on the colour of their skin.
It all depends on how the scientific results are interpreted to support specific social paradigms. If human genetics have been changing rapidly over the last 20000 years from a common origin - that actual supports a racist view of history.
@@barbaravick5634 Europeans don't come from Africa they have nothing to do with black Africans they are a separate species ua-cam.com/video/kxhAFzqdcO4/v-deo.html