Scientists are digging into one of evolution’s strangest puzzles — why only certain creatures developed minds that know they ...

Earlier this year, a group of researchers published a paper on the remarkable phenomenon of sex reversal in several ...

Flight is a rare skill in the animal world. Among vertebrates, it evolved only three times: in bats, birds, and the ...

New findings add to evidence that enlarged brains seen in modern birds and presumably in their prehistoric ancestors were not the driver of pterosaurs’ ability to achieve flight, says @HopkinsMedicine ...