Ancient jawbone from Taiwan belongs to a mysterious group of human ancestors, scientists say

An ancient jawbone discovered in Taiwan belonged to an enigmatic group of early human ancestors called Denisovans, scientists reported Thursday.

Relatively little is known about Denisovans, an extinct group of human cousins that interacted with Neanderthals and our own species, Homo sapiens.

“ Denisovan fossils are very scarce,” with only a few confirmed finds in East Asia, said study co-author Takumi Tsutaya at the Graduate University for Advanced Studies in Japan.

So far, the only known Denisovan fossils include partial jawbones, a few teeth and part of a finger bone found in caves in Siberia and Tibet. Some scientists belie...
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