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

A 113-million-year-old hell ant fossil discovered in northeastern Brazil's Crato Formation represents the oldest known ant specimen in the fossil record. The remarkable preservation reveals ...

Scientists working in Ethiopia's Afar Region have made discoveries that rewrite our understanding of early human history. For ...

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

Digital reconstruction of a crushed skull from an ancient human relative could rewrite the timeline of human evolution, researchers said. A cranium dubbed Yunxian 2 was found in the Yunxian region of ...

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, ...

A team from the University of Illinois has uncovered surprising evolutionary links between the genetic code and tiny protein fragments called dipeptides. By analyzing billions of dipeptide sequences ...

Bacterial evolution and oxygen adaptation: A timeline built from genomic, fossil, and chemical data. Colors show oxygen states: anaerobic (blue), aerobic (red), and proportion of aerobic lineages in ...

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 ...

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 ...