Yahoo Web Search

Search results

  1. May 24, 2019 · November 21st, 2018. Browse the Fortnite Item Shop History, preview previous item shop rotations, the Current Fortnite Item Shop and More.

  2. Oct 12, 2017 · Until recently, researchers assumed that after human ancestors shed most body hair, sometime before 2 million years ago, they quickly evolved dark skin for protection from skin cancer and other harmful effects of UV radiation.

  3. Jan 28, 2019 · Human skin color reflects an evolutionary balancing act tens of thousands of years in the making. There’s a convincing explanation for why human skin tone varies as a global gradient, with the darkest populations around the equator and the lightest ones near the poles.

    • Bridget Alex
    • Out of Africa
    • Just A Color
    • Skin Deep
    • Not So Black and White

    Scientists have long known that Africa is the cradle of human civilization​. There, our ancestors shed most of their body hair around 2 million years ago, and their dark skin protected them from skin cancer and other harmful effects of UV radiation. When humans began leaving Africa 20,000 to 50,000 years ago, a skin-whitening mutation appeared rand...

    This makes sense, but did scientists identify a bonafide race gene as well? Hardly. As the Post notes, the scientific community maintains that "race is a vaguely defined biological, social, and political concept...and skin color is only part of what race is—and is not." Researchers still say that race is more of a social constructthan a scientific ...

    When the research was first published, scientists and sociologists feared that the identification of this skin-whitening mutation would lead people to argue that whites, Blacks, and others are somehow inherently different. Keith Cheng, the scientist who led the team of Penn State researchers, wants the public to know that's not so. He told the Post...

    Scientists at Penn State continue to explore the genetics of skin color. In a 2017 study published in the journal Science, researchers report their findings of even greater variants in skin color genes among native Africans. The same appears to be true of Europeans, given that, in 2018, researchers used DNA to reconstruct the face of the first Br...

    • Nadra Kareem Nittle
  4. The apes that we’re descended from probably had pale skin under their dark fur, just as modern chimpanzees have now. Dark skin evolved around a million years ago as our ancestors moved from the forest to the savannah and began to lose their fur.

  5. Apr 2, 2015 · It wasn't until about 4300 years ago that lactose tolerance swept through Europe. When it comes to skin color, the team found a patchwork of evolution in different places, and three separate genes that produce light skin, telling a complex story for how European's skin evolved to be much lighter during the past 8000 years.

  6. People also ask

  7. Apr 3, 2015 · For years, researchers assumed that skin lightened as humans migrated from Africa and the Middle East into Europe, about 40,000 years ago. A sun lower in the sky and shorter day lengths would...

  1. People also search for