Monday, September 12, 2011

'Mosaic' Fossil Could Be Bridge From Apes To Humans

Australopithecus sediba
A pair of fossils from a South African cave have scientists both excited and puzzled. Scientists say the fossils — an adult female and a juvenile — could be the long-sought transition between ape-like ancestors and the first humans.

The bones belong to creatures related to the famous Lucy fossil found in Ethiopia in the 1970s, but their owners lived more recently — just 2 million years ago.

The reason for the excitement? Ask anthropologists what they dream about, and many will tell you it's the fossil of the last pre-human ancestor that led directly to us. Nobody's found it, and any who claim to usually get publicly whacked by their peers.

Lucy and her kind — the diminutive, ape-like Australopithecus that lived 3.2 million years ago — may well have evolved into us, the genus Homo. But a lot happened in between Lucy and the earliest humans, who emerged just over 2 million years ago. The true "transitional" species must have lived about the time we emerged.


Full story here.
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