New fossil discoveries are reshaping scientists’ understanding of a pivotal chapter in human evolution, revealing that several human ancestor lineages lived side by side nearly 3 million years ago.

A fossilized foot found in the dusty sediments of northern Ethiopia has reopened one of paleoanthropology’s most consequential questions: how many species of early hominins walked the Earth at the ...

Walking on two legs has long been considered a milestone in human evolution and one of our most defining characteristics. Until now, researchers assumed that the first humans originated in Africa and ...

A stunning fossil discovery in Ethiopia shows that early Homo and a previously unknown Australopithecus species lived together around 2.6 to 2.8 million years ago. The find overturns the classic ...

In 1859, Charles Darwin’s theory of evolution was postulated in “On the Origin of Species.” In this theory, Darwin suggested that evolution occurred gradually, although there were no complete fossils.

Fossils unearthed in Morocco from a little-understood period of human evolution may help scientists resolve a long-standing mystery: Who came before us? Three jawbones, including one from a child, ...

Fossils from a Moroccan cave have been dated with remarkable accuracy to about 773,000 years ago, thanks to a magnetic signature locked into the surrounding sediments. The hominin remains show a blend ...

Roughly 500 million years ago, a strange event in the evolution of life on Earth seems to have taken place. The known fossil ...

Goblet-shaped sea jelly relatives with miniature “arms.” A plump, legless creature resembling a sausage. Long, wormlike animals tipped with flat “holdfast” discs for anchoring to the seafloor.