Humanity may not be extraordinary but rather the natural evolutionary outcome for our planet and likely others, according to a new model for how intelligent life developed on Earth.

New research has revealed that birds, reptiles, and mammals have developed complex brain circuits independently, despite sharing a common ancestor. These findings challenge the traditional view of ...

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

Just as the human body serves as a habitat for bacteria and other microbes, diverse, tiny organisms known as protists host ...