New fossil discoveries are reshaping scientists’ understanding of a pivotal chapter in human evolution, revealing that ...

Fern-like bodies once covered the seafloor, some stretching as tall as a person. Yet for millions of years, the animal world ...

New evidence published today in the journal Science upends decades of evolutionary theory about when animals first walked on ...

Ancient fossilized babies of crocodile-like predators are rewriting evolutionary history. Previously, scientists believed ...

How ancient bryozoans may have looked. (Zhifei Zhang) The Cambrian explosion was one of the most dramatic chapters in the ...

Palaeontologists have found new evidence that the early ancestors of amphibians, reptiles and mammals did not have a larval ...

Entire groups of organisms – and possibly even ecosystems – may still await discovery within museum drawers or poorly studied ...

Researchers have found evidence of a previously unknown branch of the marsupial family tree, a discovery that could reshape our understanding of how Australia's unique mammals evolved. Published in ...

In recent decades, scientists have debated whether a seven-million-year-old fossil was bipedal—a trait that would make it the oldest human ancestor. A new analysis by a team of anthropologists offers ...

Ancient Australian fossils indicate that the earliest eukaryotes depended on oxygen, providing new evidence that oxygen ...

Many animals exhibit fascinating collective behaviors, which allow them to move, search for food, reproduce and avoid threats ...

Jawbones and other remains, similar to specimens found in Europe, were dated to 773,000 years and help close a gap in Africa’s fossil record of human origins. By Franz Lidz Researchers on Wednesday ...