Males and females differing in body size is a common outcome of sexual selection.

There has been much debate over the years as to exactly how “Lucy” walked.

Human minds were shaped in a different world to the one we live in today.

If evolution had taken a different turn, nature would be missing some colours.

Humans evolved late in Earth history. While this timing inspired the conclusion that humanlike life is a cosmic improbability, a new study pushes back.

The neck’s vitality and vulnerability are rooted in a quirky evolutionary history.

The findings echo Charles Darwin’s research with finches nearly two centuries ago.

Twins are pretty rare, accounting for just 3% of births in the US these days. But new research shows that for primates 60 million years ago, giving birth to twins was the norm.

Evolution is often depicted as a steady forward march from simple to complex forms. But new research shows that certain ferns can evolve ‘backward.’