Our Ancestors, Dumber Than We Thought

What best characterizes a monkey or an ape?It's the big brain.But when researchers got a new fossil of a common ancestor of monkeys and apes (humans included), they found out that the 29 million-year-old creature has not such a big brain as expected. "The finding indicated that primate b... [ read more >> ]

Simons handles the 1966 male skull (left) and 2004 female skull (right)

Image comment: Simons handles the 1966 male skull (left) and 2004 female skull (right)
Image credits: Megen Morr / Duke University

Simons handles the 1966 male skull (left) and 2004 female skull (right)