The Science of Skin Color Skin color is caused by a multitude of factors, the brown to tan color of skin is determined by a brown pigment called melanin, which is produced by cells in the epidermis called melanocytes. Our human ancestors in Africa likely had dark skin, which is produced by an abundance of the pigment eumelanin in skin cells. In this video by educator Angela Koine Flynn, with animation by Tomás … But we’re not treating each other fairly. When ultraviolet sunlight hits our skin, it affects each of us differently. Skin color is due to melanin, a pigment produced in the epidermis to protect us from the sun's potentially cancer-causing ultraviolet (UV) rays. The discovery also emphasizes that humans developed different skin color for one reason and only one reason — to regulate the amount of UV light that makes it into our cells. Bill Nye Breaks Down The Science Behind Skin Color, Points Out 'We're All One Species' The Science Guy wants you to understand the relationship between skin tone and ultraviolet rays — and to start "treating each other fairly." Bill Nye explains how ultraviolet light and geographical location affect the color of skin. “If you have too much ultraviolet, you break down your folates. The Science of Skin Color. Depending on skin color, it’ll take only minutes of exposure to turn one person beetroot-pink, while another requires hours to experience the slightest change. Article #25: The Science and Evolution of Skin Color (Gr.8-12) Article #21: Sex Changing Fish (Gr.7-12) Article #22: Fecal Transplants (Gr.7-12) Article #23: Human Cyborgs vs. Bionic Humans (Gr.7-12) Article #26: Tanning, UV Radiation and Skin Cancer (Gr.7-12) This article can be found in a LARGER BUNDLE of 50 ARTICLES for 35% OFF Research has linked colorism to smaller incomes, lower marriage rates, longer prison terms, and fewer job prospects for darker-skinned people. New gene variants reveal the evolution of human skin color. Using the color-coded visual aid depicting the intensity of ultraviolet rays on different continents, he demonstrates why some skin is lighter than others. ##LearnOnTikTok ##TikTokPartner ♬ original sound - billnye "That's it, everybody," he says at the end. By Ann Gibbons Oct. 12, 2017 , 2:00 PM. This story has been shared 251,719 times. The Biology of Skin Color: Black and White. Bill Nye “The Science Guy” is ditching the educational VHS tapes for a TikTok clip posted this week, teaching a new generation of die-hard fans a timely lesson on racial equality. You have to have it in perfect balance,” he explains, showing a meter ranging from pale beige to dark brown. My students were fascinated by the idea presented in Kissinger’s book that all people come in shades of brown. Variations in human skin color are adaptive traits that correlate closely with geography and the sun’s ultraviolet (UV) radiation. Whatever the color, our skin tells an epic tale of human intrepidness and adaptability, revealing its variance to be a function of biology. Your California Privacy Rights On Nye’s TikTok, which has 3.1 million followers, he’s revived his old video series with short clips like this, including the  popular “Consider the Following” segment. Theory held that darker skin had evolved in order to afford early humans—who had recently lost the cover of fur—a protection against skin cancer under the tropical sun. The actual skin color of different humans is affected by many substances, although the single most important substance is the pigment melanin. “It turns out everybody on Earth is descended from people that live here, Africa,” he says while pointing to a map. The type and amount of melanin in your skin determines whether you’ll be more or less protected from the sun. In the most recent Ted-Ed video, the science of skin color is explained through evolutionary human origins.. Most people associate Africans with dark skin. Start studying HHMI: The Biology of Skin Color Video. “It’s time to change things.”. Technology that mimics skin could help people with artificial limbs sense things, or enable buildings to sense cracks in their facades so that they can be repaired. It all centers around melanin, the pigment that gives skin and hair its color. Our human ancestors in Africa likely had dark skin, which is produced by an abundance of the pigment eumelanin in skin cells. Depending on skin color, it’ll take only minutes of exposure to turn one person beetroot-pink, while another requires hours to experience the slightest change. Japan declares state of emergency for Tokyo area as COVID cases soar. The Science of Skin Color. translators. send Assign as HW. code Embed. At a glance, we identify people based on their unique combination of physical features – height, facial shape, skin tone, eye and hair color. “Because the ultraviolet varies, the color of our skin varies, and that’s it!”, He ended the video with an important reminder: “We’re all one species! This is really a landmark study of skin color diversity, says geneticist Greg Barsh of the HudsonAlpha Institute for Biotechnology in Huntsville, Alabama. Skin color is one of the first things we notice about people, but many of us may be unaware of the scientific basis for skin color variation. All rights reserved. Fifty-thousand years ago, our African ancestors migrated north and settled in Europe and Asia. This article appeared in the Science & technology section of the print edition under the headline "The skinny on skin colour" Reuse this content The Trust Project More from Science & … But the evolutionary story behind this variation is shared: Over the course of human evolution, complexion evolved from light to dark to a continuous gradient, mediated by geography, genes and cultural practices. Kissinger’s own book, All the Colors We Are, offers clear explanations for why people have different skin tones. Colorism disadvantages people with darker skin while privileging those with lighter skin. Here is an excellent skin color analysis activity prepared by the Association for the Advancement of Science. Thanks for contacting us. The Science of Skin Color. He concluded, “And that’s it, everybody. Skin color is one of the most visible indicators that helps distinguish human appearance, and a new study provides more detail as to how one protein helps produce this wide palette. Using the color-coded visual aid depicting the intensity of ultraviolet rays on different continents, he demonstrates why some skin is lighter than others. Dark … This ingredient comes from skin cells called melanocytes and takes two basic forms. Many of these are influenced by our genetic code. Science commentator Bill Nye had some choice words about the... Post was not sent - check your email addresses! Skin color is usually measured in scientific studies using a reflectometer, which measures how much light of a particular wavelength is reflected from the skin. Skin color is one of the most obvious and (literally) superficial ways humans differ. © TED Conferences, LLC. Skin color is one of the first things we notice about people, but many of us may be unaware of the scientific basis for skin color variation. Your Ad Choices Domino's wants people to start recycling its pizza boxes, This story has been shared 454,623 times. njet90 November 24, 2020 15 plays; 1 faves; 0 copies; done Student answers. When ultraviolet sunlight hits our skin, it affects each of us differently. That’s why we have different colored skin. Related Reading on Skin Color Children’s Picture Books About the Color of Skin. “As groups of us moved around the world, the color of our skin had to change, and here’s why.”. The closer you are to the equator, the more intense the ultraviolet rays are, affecting places like northern South America, Southern Asia and most of Africa. favorite_border favorite Favorite. Open Translation Project. Not everybody is getting an even shake,” he says. Sitemap Humans around the world are born with different skin colors and complexions, but we weren’t always so varied. This story has been shared 143,842 times. flag Problem? Go deeper into fascinating topics with original video series from TED. Humans around the world are born with different skin colors and complexions, but we weren’t always so varied. #LearnOnTikTok #TikTokPartner ♬ original sound – Bill Nye. This film explores the hypothesis that different tones of skin color in humans arose as adaptations to the intensity of ultraviolet radiation in different parts of the world. Learn more about the Fifty-thousand years ago, our African ancestors migrated north and settled in Europe and Asia. What’s to account for that difference, and how did our skin come to take on so many different hues to begin with? 143,842, © 2021 NYP Holdings, Inc. All Rights Reserved All the Colors We Are. Terms of Use Do Not Sell My Personal Information, Your California Privacy Rights The ##science of skin color. The Science of Skin Tone I began the lesson by grounding my students in the science of skin tone. What’s to account for that difference, and how did our skin come to take on so many different hues to begin with? Young children, like adults, see different skin colors—and assign meaning to these differences. GOP senator says he's spoken to Pence, and he is furious, Ellen DeGeneres to resume in-studio filming next week, Brad Rutter remembers Alex Trebek opening ‘Jeopardy!’ without pants, ‘Police Academy’ star Marion Ramsey dead at 73, © 2021 NYP Holdings, Inc. All Rights Reserved, Bill Nye reveals his long-awaited verdict on masks, Bill Nye on global warming: 'The planet is on f--king fire', See Kim Kardashian's hottest Instagram shots amid split, HP takes 50 percent off laptops, desktops and more for Back To Business Sale, This fitness app will help you hit your New Year's resolution goals, The 10 best fleece-lined leggings of 2021 for keeping warm this winter, Walmart's fitness deals will help you reach your New Year's health goals, You can get four Baublebar masks for just $12 for buy one, get one deal, Hilaria Baldwin loses brand partnership amid Spanish heritage scandal. Learn more about the important science of skin color with these two videos. The sun is the orchestrator of our skin tones. Sorry, your blog cannot share posts by email. The #science of skin color. For Summer's First Full Day: The Science Of Skin Color And Vitamin D : 13.7: Cosmos And Culture Our evolutionary history is inscribed on our very skin. Melanin is produced within the skin in cells called melanocytes and it is the main determinant of the skin color of darker-skin humans. In the clip, which now has 11.4 million views, Nye explains the reason why people’s skin tones vary, and encourages his viewers to “start treating each other fairly” based off the science of it all. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Bonnie Burton July 19, 2020 8:16 p.m. PT Protester killed in Capitol was Air Force vet from California, Video shows moment woman was fatally shot in Capitol, Danish cartoon about man with superlong penis enrages parents, This is the moment a woman was fatally shot amid US Capitol chaos, DC police release photos of suspects in US Capitol siege. In the early 1990s, the evolution of skin color was regarded by many of her peers as an intractable problem. “Skin is where we make Vitamin D. If you don’t get enough ultraviolet, you don’t get enough vitamin D,” the bow-tie wearing scientist, 64, says. Do Not Sell My Personal Information. A person’s skin Browse the library of TED talks and speakers, 100+ collections of TED Talks, for curious minds. As early humans moved into hot, open environments in search of food and water, one big challenge was keeping cool. Skin color is one of the most visible indicators that helps distinguish human appearance, and a new study provides more detail as to how one protein helps produce this wide palette. We've received your submission. I wanted my students to understand something of the science of skin color in order to challenge the notion that skin color is an indication of anything more than genetic adaptations to one’s environment. He also used it as a force for good recently to demonstrate why people should be wearing face masks. Posted on July 11th, 2018. Say thanks Task description & scene summary. Privacy Notice A person’s skin Bill Nye the Science Guy uses science facts to show why we all have different skin colors but also says we need to start treating each other as equals. Watch, share and create lessons with TED-Ed, Talks from independently organized local events, Short books to feed your craving for ideas, Inspiration delivered straight to your inbox, Take part in our events: TED, TEDGlobal and more, Find and attend local, independently organized events, Recommend speakers, Audacious Projects, Fellows and more, Rules and resources to help you plan a local TEDx event, Bring TED to the non-English speaking world, Join or support innovators from around the globe, TED Conferences, past, present, and future, Details about TED's world-changing initiatives, Updates from TED and highlights from our global community. This story has been shared 454,623 times. Human skin color ranges from the darkest brown to the lightest hues. Colorism refers to discrimination based on skin color. Specific skin areas are usually favored, especially those with little sun exposure (eg, under arm, inner wrist), in order to get the most natural and “unacclimated” phenotype. It took Bill Nye the Science Guy just 61 seconds to explain to his followers on TikTok why people have different skin colors and that, to state it simply, “We’re all one species.” By Jeremy Blum. 251,719, This story has been shared 143,842 times. Whatever the color, our skin tells an epic tale of human intrepidness and adaptability, revealing its variance to be a function of biology. Finally, check out these other videos, which explore the topic of human skin in different ways. When ultraviolet sunlight hits our skin, it affects each of us differently. There's eumelanin, which gives rise to a range of brown skin tones, as well as black, brown, and blond hair, and … Pigmented moles or nevi arc localized areas of increased pigment produce by a different pigment producing cell called a nevus cell. Bill Nye Breaks Down The Science Behind Skin Color, Points Out 'We're All One Species' The Science Guy wants you to understand the relationship between skin tone and ultraviolet rays — and to start "treating each other fairly." The Science of Skin Color. Variation in Human Skin Color. Copy & Edit. In the most recent Ted-Ed video, the science of skin color is explained through evolutionary human origins.. The sun is the orchestrator of our skin tones. … This film explores the hypothesis that different tones of skin color in humans arose as adaptations to the intensity of ultraviolet radiation in different parts of the world. It all centers around melanin, the pigment that gives skin and hair its color. Skin color is usually measured in scientific studies using a reflectometer, which measures how much light of a particular wavelength is reflected from the skin. Learn more about the important science of skin color with these two videos. Technology that mimics skin could help people with artificial limbs sense things, or enable buildings to sense cracks in their facades so that they can be repaired. Specific skin areas are usually favored, especially those with little sun exposure (eg, under arm, inner wrist), in order to get the most natural and “unacclimated” phenotype. Angela Koine Flynn describes the science of skin color. 454,623, This story has been shared 251,719 times. Let’s Talk About Race. Middle School and High School Skin Color Activity. Finally, check out these other videos, which explore the topic of human skin in different ways. The evolution of race was as simple as the politics of race is complex By Gina Kirchweger. By Jeremy Blum. TED.com translations are made possible by volunteer Bill Nye explains how ultraviolet light and geographical location affect the color of skin.