Friday, July 4, 2014

Scientists Revise Timeline Of Human Origins, Research Links Changing Environment With Homo’s Evolutionary Adaptability

Many traits unique to humans were long thought to have originated in the genus Homo between 2.4 and 1.8 million years ago in Africa. Although scientists have recognized these characteristics for decades, they are reconsidering the true evolutionary factors that drove them. These fossil skulls, representing pre-erectus Homo and Homo erectus, exhibit diverse traits and indicate that the early diversification of the human genus was a period of morphological experimentation. In July 2014, Smithsonian paleoanthropologist Richard Potts and a team of researchers analyzed new scientific data and concluded that the ability of early humans to adjust to changing conditions ultimately enabled the earliest species of Homo to vary, survive and begin spreading from Africa to Eurasia 1.85 million years ago.



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