Human placentas produce exceptionally high hormone levels that may have driven our brain evolution, not male competition as traditionally thought These pregnancy hormones directly influence fetal ...

The human body is a machine whose many parts – from the microscopic details of our cells to our limbs, eyes, liver and brain – have been assembled in fits and starts over the four billion years of our ...

Long before humans became master hunters, our ancestors were already thriving by making the most of what nature left behind. New research suggests that scavenging animal carcasses wasn’t a desperate ...

The human body is a machine whose many parts – from the microscopic details of our cells to our limbs, eyes, liver and brain – have been assembled in fits and starts over the four billion years of our ...

Scientists digitally reconstructed the fossilized skull, which is between 940,000 and 1.1 million years old, to aid their research A human skull found in 1990 is now changing scientists' understanding ...

Our species, Homo sapiens, has been evolving for more than 300,000 years, but the story of human origins starts much earlier.

A badly crushed cranium unearthed decades ago from a riverbank in central China that once defied classification is now shaking up the human family tree, according to a new analysis.Related video above ...

Scientists find genetic mutation, millions of years ago. Oct. 12, 2011 — -- About three million years ago human predecessors embarked on a new course that would forever alter the evolution of our ...

The human body is a machine whose many parts—from the microscopic details of our cells to our limbs, eyes, liver and brain—have been assembled in fits and starts over the 4 billion years of our ...