lesson of the day: stop being racist, skin color doesn't make you superior, it just adapts you to the environment where u live.

special edition: like if ur here cos of QUARANTINE bio class

"To eradicate racism, is not for us to become color blind but to see the beauty of a colorful World" n this is the TRUTH

Nobody: Half the people in the comment section: iM hErE bEcAuSe Of BiO cLaSs

Skin color is a product of our evolution, and should never have been judged as something good or bad.

I need the reflectometer so I can finally buy the right foundation.

17:03 , 13:42 and 11:42 Has the answers for ur bio hw questions. Ur welcome :)

this video seems to be very popular among bio teachers, huh? thats why im here after all

When you come for biology, but actually really enjoy the subject matter and have a fun time learning.

I was just watching this off of pure interest. 😂. Everyone else is here for class

“We are one under the sun”. This summarising phrase sums up your message concisely and precisely. Thank you ❤️💐

CEO of ending racism

I’m not here because of bio class. I just smoked a blunt and now I’m ready to go down a rabbit hole 🕳

Everyone seems to be here for bio, but where's my anthropology gang?

Bioclass is lucky they're even learning this. Good luck in the future world! Make it a better place

girl u ate with that "we are one under the sun", i feel inspired

They should show this film in schools all over the world.

I'm sometimes struck by the response I get from some of my peers when I ask them "Why do you think people with darker skins tend to be located in regions near the equator?" I recall asking one friend this and his response to me was "Genes". I then asked "Why do you think they have THOSE genes?". It seemed that variations in skin color as an adaptation - rather than some random fluke - escaped him. Watching this video, I learned something NEW about skin color. I used to think that fairer skinned people simply LACKED a certain DENSITY of melanin that would otherwise make a person dark. I didn't realize there was another COLOR of skin melanin. Interesting!!

Thank you for making this wonderful documentary! So many more people should watch this and learn from it.

so y'all really just gonna unite over school classes? respect, respect lol i'm here for introductory general bio for uni xD

Where my anatomy gang at tho?

I must've increased my vitamin D...never noticed til I started taking D3 for arthritis & bulging discs.

Yo if we're all here for the same reason just drop the answer key

I'm a dietitian and a teacher at a university, and this video was INCREDIBLY useful to understand the relation between our ancestors, where they lived, our skine tone, where we live, and our diet with the production of vitamin D. Thank you!

Let me guess your here for bio class during quarantine

Still relevant. I enjoyed reading the comments from mostly bio students with the exception of a few jokesters who were actually funny. This needs a reboot. Comprehensive and necessary right now.

weirdly, I'm here for my nutrition class.... anyways when she said that skin color should never have been judged as something good or bad.... YES MISS MAMA ending racism over here

everyone: "anyone here for bio class" me: ......I'm here for physiology class lol

I’m not color blind I appreciate the beauty and diversity of mankind

I a light note, I always tell my children there is no black people or white people, we are just different shades of the same color. Turns out thinking this way was correct. Another aspect of this doc is the mention of other species and how melanin plays a role. It is simply a part of life that helps with adaptations to our environments and nothing more. It is beautiful.

5:02 Isn't that where 2012 Captain fought with 2019 Captain in endgame? Looks pretty similar...

i'm seein a lot of "i'm here for bio" and not enough "i have the answer key if y'all need it" and it's quite disrespectful

Everybody here for biology Me here for A&P: 👁👄👁

She got it correct!! All human began with "DARK" skin!!!

This channel is really helping me with my anthropology class! Thank you!!! :)

This was truly uplifting to watch. How I wish such a presentation could have been part of my school upbringing as young teen.

Love this video, especially on the part where it said the truth, that humanity started near to the equator in the African continent, where we were all dark-skinned and then some of us moved to different parts of the world further away from the equator where the colder that part of the world was the lighter our skin got. So we evolved from the dark skin complexion. If this was to be thought or mentioned more, it will make a big difference in our daily living. It will teach us to look upon the black race who the world thought you to hate. To admire, respect, and see them as brothers & sisters has how God wants us to see each other. Be in peace and harmony. But like how evil mankind enrichens his-self off of trials and wars, they rather keep us hating one another, by keeping the all lies History books in the whole worldwide school systems; Has they have done for over 500 years. So is time for us to stop teaching History (His-Story) and start preaching the Truth!

had to watch this today in bio and we had to take notes but i wasnt paying attention so im here now lol

the most complete documentary on the adaptation of human skin to climate

If you are here from Ms. Nicholson's Biology class, and want to leave an annoying comment, could you at least spell words correctly and write in complete, punctuated sentences? It is important to be consistently literate throughout your day...whether you are quarantined or not. Thanks...now watch this video because it is really well done.

Outstanding video, and educational. People can take from it as they want. I love the quote We are one under the sun, because we are.

So, your skin color tells you the type of climate to which you are adapted?

5:49 - 9:08 9:08 - 12:19 12:19 - 13:32 16:04 - end Just some time stamps for the worksheet we have to do, someone else might need em :)

Love this. I use it with HHMI's wonderful skin color lab. My students learn evolution, how to interpret data, AND the process of science all in one lab activity.

Love this. A little education can go a long way in society!!

Dr. Jablonski, I want to thank you and all of your colleagues for doing such great work. Your research and findings may be the key to curtailing racism and faulty conclusions about skin complexion and human value.

This video confirms and puts names to face what I always believed as an adult about the human species when it comes to human skin.

Someone write a summary of this vid to help with everyone’s bio class

Used this for my bio class

Very intriguing. Well structured argument. Could have been bits longer, but anyway essence of evolution or evolutionary phenomenon is described beautifully.

I knew about the connection between the need for vitamin D, the adoption of an agricultural (plant) based diet while living in latitudes far from the equator and paler skin. However I have now learned about how sunlight can break down folate and the need for darker skin (in equatorial latitudes) to preserve this nutrient in the body. Thank you

Great piece. Thank you.

Great explanation of Skin color . More people should see it . I love your scholarly scientific research behind the video . Yet you made it simple to understand for all. This video should be in all school districts and part of the science / biology curriculum.

A beautiful explanation of the sound science of why we are all one. THANK YOU!

This video is amazing! Thank you so much who made it, I will use it in my lecture on genetic variation and change, as well gene expression with a focus on human race. I am sure my classes will enjoy it.

Such a great film. Can't wait to show this to my 8th graders!

Tess is an icon. Absolute icon.

That's right no one should'nt make fun of ppl skin color because we are ONE

Excellent info. and agree with others here who've said this should be required for ALL young school children to avoid any lingering bigotry and false ideas. All humans belong to one race, the human race, and all are various shades of brown, no white, no black, just brown to tan.

What a great little documentary. Thankyou.

More people need to see this video. Its very interesting stuff. One race the human race

This is the most informative and important information I've seen in awhile. What took bio-science so long to share on line??

There are a lot of different kinds of beautiful!

Skin Cells What is the function of keratinocytes? Provides skin structure and in functioning of the immune system What is the function of melanocytes? Producing melanosomes that determines the type of melanin. Melanin Melanin is a pigment that is produced in organelles called in specialized cells called melanocytes. What are the two primary types of melanin and how do they differ? eumelanin and pheomelanin. Explain how the amount of eumelanin and number of melanosomes differ between a person with lighter color skin and a person with darker color skin. Reddish-yellow pheomelanin is more abundant in lightly pigmented people. Brown-black eumelanin is more abundant in darkly pigmented people. (more eumelanin=dark skin) How Does Melanin Protect Cells? Name the molecule in the body cells that UV radiation can damage. Skin cell DNA How does melanin protect these molecules from UV damage? By forming supranuclear caps that absorb UV around the nucleus Vitamin D Why is vitamin D important to our health? Because without vitamin D, humans cannot absorb calcium that builds the bones and healthy immune system. What is the connection between skin, sunlight, and vitamin D ? Our skin receives UVB that comes from sunlight which provides vitamin D for our body. What are the positive and negative effects of UVB exposure? UVB exposure is critical for the synthesis of vitamin D, but the amount of vitamin D that can be received from UVB is greatly dependent on the latitude.

Fue muy interesante muchas gracias

Funny thing, I'm also here because of Bio class, but I raised the question of human skin color as either adaptation or evolution, and the professor decided to add this assignment. So in short, I'm here because of bio class and because I couldn't keep my mouth shut.

Yes but how do you explain facial features & hair types?

Excellent video!

This is a great video. I thought I knew it all already, but I learned a lot about the question why are we all different colours.

This video was VERY well produced!😊👍🏾🔬

Most clear voice and pronunciation

Here because of my principle of genetics class. I love it

I'm here because this was in the recommend of a video about Galapagos finches. No school for me!

when it's quarantine and your entire anthro class is just made up of youtube videos

I liked it when she started of with 'rich brown skin'😂😂😅👊🏿big up Nina

I came here for bio a few years ago. And I've returned for English of all things!

I was born pale blonde hair blue eyes....Remember always getting sunburns as a kid and teen.... As an adult i got a work visa in Damascus(before the war ofcourse....2002-2009) After 4 yrs there i begin to notice my skin color changed to more of a natural tan and i could be in the sun without sunscreen....and i stopped getting burned...Also my hair went from blonde to dark blondish light to medium brown depending on the season.....even my eyes seemed to be grey alot of the time. Came back to the US and been back over 5 yrs....and i deff. dont burn as i did but im not as tan...and my hair is back to blonde and eyes bright blue.

This video helped my insomnia:) put me right to sleep💙 thank you!

Thank you for the information

I love anatomy right now it’s great

08:39 Australia has beige toned Native Australians? I'm not sure if this map is correct because Aborigines are very dark. Recent Australians are immigrants from Europe and Australia is mostly a desert.

Hey but what about tanning? I was obligated to watch this, but hey, it's actually pretty interesting!

Thanks for your efforts Dr.

THANKS FOR THIS WONDERFUL INFORMATIVE VIDEO!

მოგესალმებით გვრიტებო

The map shows that Australia had a mid range UV exposure, yet the Aboriginal people are one of the darkest races on Earth ? What has happened there......?

Superb video

Fantastic!

George Foreman Barbecue Grill

We are one under the sun

When did lose hair and gain melanin. The hair loss, likely due to genetic mutation, was pigmented. Hair is skin or from skin if it makes anyone feel more comfortable. So we were always pigmented.

I noticed they used the Peterson map!

Here out of curiosity ♥️

IT IS EXTREMELY UNBELIEVABLE THAT PERSONS ARE STILL RACIST IN THIS DAY AND AGE!!!!!

gotta love biology class

Thanks.

Black skin = power, protection, intelligence and long life

Hello comrades, good luck in Anatomy.

Very informative.Is it just me or did the host change colors during this presentation?

fascinating!!