Mammals have the largest brain to body size ratio among vertebrates, but how did this unprecedented encephalization emerge during their evolution? A new study by Ornella Bertrand and colleagues ...

Association of paleopalynological data from the Nanxiong Basin, south China, and late Paleocene niche expansion in endemic Asian fossil mammals.

WASHINGTON, March 31 (Reuters) - In the aftermath of the asteroid impact 66 million years ago that doomed the dinosaurs, it appears that brawn was more important than brains for the mammals that ...