Researchers digging in Ethiopia turned up a jawbone, which they have since identified as belonging to one of the very first humans.
The history of human development is a long one, but exactly how lengthy it is remains a matter that’s riddled with uncertainty.
Researchers digging in Ethiopia turned up a jawbone, which they declare has traits seen in Homo lineage and may be evidence of the very first humans.
Dated to be about 2.8 million years old, the fossil comes from a period of human development about which little is known.
That phase also happens to be quite an important one, as it’s when much of the transitioning from tree-dwelling, ape-like sorts to pre-human types that could use tools occurred.
A distinguishing trait is jaw size, as those who walked upright and used brain over brawn developed larger cranial regions while their mandibles shrank.
The piece of bone discovered still has 5 teeth in tact, including relatively
