Biologists find an evolutionary Facebook for monkeys and apes

Why do the faces of primates contain so many different colors, including black, blue, red, orange and white, mixed in all kinds of combinations, and often striking patterns? UCLA biologists report on the faces of 139 African and Asian primate species that have been diversifying over some 25 million years.

Fuente : http://www.eurekalert.org/pub_releases/2013-11/uoc…