That makes scents: Sniffing made us smarter
Thursday, May 19, 2011 - 17:30
in Biology & Nature
The unusually large brains of mammals apparently didn't evolve so that we could ponder philosophy — but so we could sniff our way to success. A new analysis of some of the earliest mammals and mammal-like creatures shows their complex brains evolved in stages, starting with the regions that handle the sense of smell.