The oldest-known ice mummy consumed high amounts of fat.

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

European settlers likely wiped out these ancient dogs, but the animals seem to have left a lasting legacy in a transmissible canine cancer.

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

The now-extinct gibbon was buried with the grandmother of China’s first emperor and her many pets.

Ancient bones from Ireland reveal that farming has changed nitrogen composition in land for the last 3,000 years.

Researchers also found seasonal variations in atmospheric methane on the planet that may have a geological or biological origin.  

Divergent human lineages of North America intermingled before setting off to establish populations of Central and South America.  

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