When researchers in China announced a possible new human species from a cave in Hebei province, they did more than add another name to our already crowded family tree. They introduced a population ...

Biologists are quietly rewriting what it means to be alive, and the human body has become one of their strangest frontiers. Inside our cells and microbiomes, researchers are uncovering entities that ...

One of the most complete human ancestor fossils ever found could be an entirely new species, according to a new study. The fossil, found in South Africa’s Sterkfontein Caves in 1998 and dubbed “the ...

A trio of jawbones, a leg bone, and a handful of vertebrae and teeth found in Morocco may represent one of the last common ancestors of Neandertals, Denisovans and modern humans. “We can say that the ...