Sleep is essential, yet humans have evolved to need so little of it. When evolutionary anthropologist David Samson delved ...

Why do so many men only think about fertility when there is a problem? Perhaps the answer lies in our societal scripts.

Clinical data reveals male factors contribute to half of all infertility cases, shifting the focus toward earlier ...

Base editing, the process used to make the changes, only nicks one strand of DNA, avoiding the major DNA errors that made ...

A human embryo ‘base edited’ so that it can’t produce a key protein (right), fails to form the mass of cells that gives rise ...

Learn more about menarche, a mark on an ancient femur bone, and how it can help us understand the reproductive beginnings of ancient women.

At first glance, bat sea stars, the nubbly, orange, many-footed creatures often found on the seafloor, seem about as far from humans as one can get. Appearances can be deceiving, however. Scientists ...