Natural selection is the process by which some organisms in a population survive and reproduce, while others do not, based on their bodies and behaviour. It is one of the processes by which species ...

A strange tiny species of crustacean has challenged the way we think about natural selection and evolution. This microscopic animal, known as a water flea or Daphnia pulex, generates genetic variation ...

In fact, natural selection often leads to ever greater simplicity. And, in many cases, complexity may initially arise when selection is weak or absent. If you don’t use it, you tend to lose it.

Why do humans make so many laws? In a new article, I argue that the human ability to make laws evolved by natural selection. Here are a few snapshots. Laws may seem unlikely to come from evolution.