11 febrero 2015
Bird species have adapted to so many ecological niches in large part because of the variety of ways feathers lend them a competitive advantage. New research shows that one key to the feather’s manifold manifestations is the dynamic evolution of a protein family that first appeared some 150 million years ago: the beta-keratins.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TnECCehfIe0/150211123608.htm
