Add Yahoo as a preferred source to see more of our stories on Google. strawberry poison dart frog on a leaf Nature comes in a variety of striking colors, but all that beauty didn't evolve for our ...

Animals sculpt the optical properties of their tissues at the nanoscale to give themselves “structural colors.” New work is piecing together how they do it. Peacocks, panther chameleons, scarlet ...

Zebras, a children’s tale goes, became striped after “standing half in the shade and half out of it.” While the author, Rudyard Kipling, wasn’t a biologist, his story may hold some truth: research ...