You may have seen a kid play with a feather, or you may have played with one yourself: Running a hand along a feather's barbs and watching as the feather unzips and zips, seeming to miraculously ...

of just the right thickness to greatly increase the range of color different bird species can display. Microscope images adapted from Durrer (1977).

Ancient lice ate dinosaur feathers, similar to how modern-day lice eat bird feathers, according to a study published yesterday (December 10) in Nature Communications. Researchers led by Taiping Gao ...