A new study theorizes that evolution ticks at different speeds, especially when a big group of organisms first appears.

Human evolution is not a straight line but a complex branching tree shared with other great apes. This overview explains the distinction between hominids and hominins and traces the evolutionary ...

During the Jurassic period, sharp-toothed flying reptiles with the wingspan of a modern golden eagle soared through the skies ...

The story of primates is a tale of incredible variety and ancient roots, told through the lens of science, DNA, and time itself. These creatures, ranging from massive gorillas to tiny mouse lemurs, ...

University of Queensland scientists have helped to construct a detailed timeline for bacterial evolution, suggesting some bacteria used oxygen long before evolving the ability to produce it through ...

Artificial cast of Germanasterias amplipapularia, holotype Nr. 18869a–b in abactinal view (A), and actinal view (B). (C) Details of the disc and arm in abactinal view. (D) Detail of the arms and oral ...

A digital reconstruction of a million-year-old skull suggests humans may have diverged from our ancient ancestors 400,000 years earlier than thought and in Asia, not Africa, a study found. The ...