Word: homo
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Dates: during 2000-2009
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Physical contact--the feeling of skin on skin, the tickle of hair on face, the intimate scent drawn in by nose pressed to neck--is one of the most precious, priceless things Homo sapiens can offer one another. Mothers and their babies share it one way, friends and siblings share it another, teams and crowds in a celebratory scrum share it a third. And of course lovers share it in the most complex...
...wrenching tableau. A brutalized Jesus is displayed by Roman Governor Pontius Pilate, who announces derisively, "Ecce Homo," behold the man. A mob, ostensibly made up of Jesus' fellow Jews, responds with a bloodthirsty roar. They fill a massive courtyard; there must be a thousand of them...
White and his colleagues think these hominids are distinctive enough to merit their own subspecies, which the team has dubbed Homo sapiens idaltu. (Idaltu means elder in the Afar language.) But whether or not the nomenclature holds up, says paleoanthropologist G. Philip Rightmire of the State University of New York at Binghamton, "the key point is that they are from the right place at the right time to be, broadly speaking, the ancestor of modern people. It's as near as we're going...
Another controversy has to do with where modern humans first appeared. Everyone agrees that a hominid called Homo erectus left its African home some 2 million years ago to populate the Middle East, Asia and Europe. Long after that, argues one camp, Homo sapiens evolved, also in Africa, and began a second exodus. In contrast to this out-of-Africa scenario, the so-called multiregionalists say there was no second sojourn. The far-flung Homo erectus communities and their descendants, the multiregionalists believe, could have interbred enough that Homo sapiens appeared pretty much everywhere at once...
...Among other things, Africans are more genetically diverse than any other people on Earth, which suggests that they have had longer to differentiate. And populations in eastern Africa, where most of the oldest hominid fossils have been found, are the most diverse of all. Finding this most ancient of Homo sapiens in Africa pretty much settles the argument. "It's not just another nail in the coffin for the multiregional view," says Rightmire. "It lowers the coffin into the ground." Declares White: "This is what stepped out of Africa...