New human species discovered? How China fossils could redefine 'human'
Scientists have recently dated and described fossils from what may be a new species of hominid, the Red Deer Cave people. The discovery could shed new light on emergence of humankind in East Asia.
REUTERS/David Reich et al./Nature/Handout
The fossils were found in Longlin Cave in China's Guangxi Province in 1979 and in Maludong Cave in Yunnan Province in 1989. The bone fragments may have belonged to a previously unknown species of Homo, the same genus as modern humans.
The Red Deer Cave people, as scientists are calling them, share some features with modern humans. But they also differ, suggesting that, for much of our history, Homo sapiens in East Asia might have co-existed, and perhaps competed, with other animals that could also lay claim to the designation 'human.'
"It is clear that they share no particular affinity with either Pleistocene East Asians," say the researchers in their recent paper reported in the journal PLoS ONE. They don't seem to be related to modern East Asians either.
The Red Deer Cave people, so named for their taste for the meat of a now-extinct species of deer, had skulls that looked very different from those of all modern humans, including those alive today and those who lived in Africa 150,000 years ago. They had similar frontal lobes, but lacked a modern chin, for example.
The timing of the Red Deer Cave peoples' existence, between 11,500 and 14,500 years ago, overlapped with the presence of more modern-looking humans to the south and east. Apparently, they interbred very little with our ancestors, say the study's authors.