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...more complete fossil record. But even the preliminary genetic analysis has already shed new light on human ancestors' exodus from Africa and subsequent spread across the globe. The dominant theory holds that various hominin species left Africa in a series of distinct migrations, beginning with Homo erectus or a close relative a little under 2 million years ago, followed by the lineage that gave rise to Neanderthals, and finally the ancestors of modern humans about 50,000 years ago. The mitochondrial DNA of the Denisova hominin suggests its ancestors left Africa around 1 million years ago, at a time...
Indeed, the discovery and genetic mapping of the Denisova hominin may also shed further light on the mystery as to why our species thrived while so many of our close genetic relatives succumbed to extinction. "We wish to find out which genes have changed since we split from these other human forms. Those changes are what makes us human - it's the biological reason for the great success of our species," says Krause. (See how to live 100 years...
...Crimson looked to close out the set with freshman Rob Lothman behind the service line. Springfield managed to control the serve, and then set up Eric Shoemaker for the kill...
...renminbi to better reflect market fundamentals. In the past, U.S. Treasury Secretary Timothy Geithner has outright accused China of manipulating the renminbi and most (though not all) economists believe that China's currency needs to rise versus the dollar. But at a moment when U.S. unemployment is close to 10%, Beijing feels that it is being made a scapegoat for economic problems that are, let's face it, very much made in the U.S.A. It has fired back fiercely. Premier Wen has called any talk about currency revaluation a form of "protectionism." His Commerce Minister later added that...
...cheek. Auguste says they asked her about her living conditions in her impoverished camp at Champ de Mars, where an estimated 60,000 homeless earthquake survivors have settled. "We would like to move out of here, but not to someplace too far away. We want to be close enough to the center of the city," Auguste says...