The human body is a machine whose many parts—from the microscopic details of our cells to our limbs, eyes, liver and ...

New research suggests that the unique way human placentas produce sex hormones during pregnancy may have been a key driver ...

The placenta and the hormones it produces may have played a crucial role in the evolution of the human brain, while also ...

Cambridge and Oxford researchers propose the placenta drove human evolution by shaping our large, social brains.

Recent discoveries using lab-grown brain organoids, or "mini-brains," suggest that testosterone increases brain size while ...

The placenta and the hormones it produces may have played a crucial role in the evolution of the human brain, while also ...

The human chin has been fertile ground for arguments between scientists over its purpose. As with testicles, there are half a dozen plausible ideas to explain the evolution of the human chin. It could ...

The human chin has been fertile ground for arguments between scientists over its purpose. As with testicles, there are half a dozen plausible ideas to explain the evolution of the human chin.