From skin color to immunity, human biology is linked to our archaic ancestry.

The astronomical idea doesn’t align well with the fossil record, anthropologists argue, but the origins of bipedalism are still difficult to determine.

See when and where our ancestors may have interbred with Neanderthals and Denisovans.

Sequences from dozens of ancient remains from Siberia reveal the closest ancient relative of Native Americans found outside of North America.

Fossil records show that the most recent shared ancestor with modern humans may have lived at least 800,000 years ago.

A mandible dating to 160,000 years ago is the first evidence of Denisovan hominins outside the Russian cave where they were first discovered in 2010.

The dating of stone tools in China puts members of the Homo genus there more than 2 million years ago.

The function of early hominins’ enlarged brow ridges, and their reduction in size in Homo sapiens, have puzzled paleoanthropologists for decades.

Three members of a gene family called NOTCH2NL may have been involved in the evolution of humans’ big cortex.