By Will Dunham
WASHINGTON (Reuters) -Scientists have solved the mystery of 3.4 million-year-old fossils called the “Burtele Foot” discovered in Ethiopia in 2009, finding they belonged to an enigmatic human ancestor that lived alongside another…

By Will Dunham
WASHINGTON (Reuters) -Scientists have solved the mystery of 3.4 million-year-old fossils called the “Burtele Foot” discovered in Ethiopia in 2009, finding they belonged to an enigmatic human ancestor that lived alongside another…