The molecular clock theory posits that genetic changes happen steadily and gradually, offering a reliable means for peering into the past and theorizing when complex life first emerged. However, there ...

A 400-million-year-old jawed fish fossil found in the Arctic, Romundina gagnieri, could be a key link in the evolution 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 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 said Friday. The ...

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 ...

Scientists have reexamined a badly crushed skull discovered back in 1990 in Hubei Province, China — known as Yunxian 2 — and say its new reconstruction could force us to rethink long-accepted ideas ...

The discovery significantly shifts the timeline for species such as our own, Homo sapiens, and Homo neanderthalensis The discovery significantly shifts the timeline for species such as our own, Homo ...

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 ...

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 ...

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 ...