Researchers say a fossilized femur belongs to an ancient human species that was thought to long be extinct when modern humans came into the picture. This suggests ancient and modern humans could have overlapped.
Fossilized sediments from a prehistoric lake were recently found in Scandinavia and shed light on what really happened at the end of the last Ice Age.
The ancestry of modern Europeans' genetic make up has become somewhat clearer with the discovery of a previously unknown "fourth strand" of ancient hunter-gatherer ancestry.
An isotopic analysis of juvenile Siberian woolly mammoth tusks suggests that the prehistoric mammals went extinct as a result of excess hunting, not climate change.