The lower jaw was found in 2000, and the matching brain case turned up in 2005. (newscientist.com)
With a last common ancestor 24 million years ago, monkeys have smaller brain cases than apes relative to body size and a shorter life span. (news.berkeley.edu)
Nor long legs and hooves, although man's large brain case has made birthing more difficult admittedly. (jennifermargulis.net)