Keratin
Keratin is a highly durable protein that provides structure to several types of living tissues. It is a major component of mammalian hair and hooves, mammalian and reptilian nails and horns, r...
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Attacking several tons of woolly mammoth with stone-tipped spears must have taken extraordinary courage _ and ancient people left paintings to prove they did it. Now, scientists are approaching mam...
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A Journal of the American Medical Association study found that eating 30 calories’ worth of dark chocolate a day—about ¼ of a tin of Sweetriot’s fair-trade cacao nibsR...
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Keratin
Scientists cull DNA from extinct mammoth
