The natural and the social world shaped the evolution of each. Knowing whom to invite to dinner is as important as knowing ...

Until Homo floresiensis was discovered, scientists assumed that the evolution of the human lineage was defined by bigger and bigger brains. Via a process called encephalization, human brains evolved ...

Modern humans, Neanderthals, and other recent relatives on our human family tree evolved bigger brains much more rapidly than earlier species, a new study of human brain evolution has found. The study ...

Brain size increased gradually within each ancient human species rather than through sudden leaps between species. Modern humans, Neanderthals, and other recent relatives on our human family tree ...

The birds of today descended from the dinosaurs of yore. Researchers have known relatively little, however, about how the bird's brain took shape over tens of millions of years. "Birds are one of the ...

A longstanding question in evolutionary biology is how sexual selection influences how entire genomes develop. Sexual selection is where individuals with certain traits have higher reproductive ...

Scientists Left Puzzled by an Unexpected Brain Change in Modern Dogs ...

Add Yahoo as a preferred source to see more of our stories on Google. Hobbits are exceptions to the rule that older ancient humans had proportionally larger wisdom teeth and smaller brains. Jim Watson ...