Human ancestors at West Asian site deemed two species

Disputed fossil study splits a pivotal early Homo species in two

ONE OR TWO  These ancient lower jaws excavated in West Asia come from two different Homo species, a contested study concludes. The assessment conflicts with the proposal by the fossils’ discoverers that they represent a single species.

Dmanisi Team/Georgian National Museum

A controversial fossil and soil analysis concludes that a key West Asian site hosted not one but two Homo species, one living around 1.8