A group of scientists found a jawbone of a human figure in Ethiopia. The jaw is claimed as belonging to one of the first man in the world.The jaw was found in Ledi-Geraru, Afar, Ethiopia by local students named Chalachew Seyoum. He said he was shocked when I first found it."When I found it, I was immediately convinced this is an important finding. It is a kind of human fossils of ancient times who lived in East Africa," said Chalachew Seyoum, as published by the BBC on Thursday (05/03/2015).The fossil is the lower jaw with teeth 5. Teeth size smaller than previous fossils of humans that were previously considered to be elderly.The group of scientists estimate the jaw bone of human origin who lived 2.8 million years ago, much longer than previously expected - that the oldest man living in 400 thousand years ago."Previously, the oldest fossils of Homo diyakinni derived from the jaws types found in Hadar, Ethiopia in about 2 years ago," said William Kimbel, Director of the Institute of Human Ancestors Studies (Institute of Human Origins), Arizona State University."So these latest findings invite a new question whether the first humans lived 400 thousand years ago, or perhaps there are older," he added.In addition, based on the size of the jaws and teeth are large, scientists discovered the existence of transition allegedly due to climate change.Namely the transition from life settled in one place, including in the trees, into life moving from one location to lain.Yang initially dependent on natural resources into independent living by trying to develop a food ingredient."This is the most important transitions in human evolution," said the head of the research team of Prof. Brian Villmoare from the University of Nevada.
Species "Lucy"Head of the research team of Prof. Brian Villmoare explained, it also suspect a link between the findings of the jaw with the species Australopithecus sediba discovered in Ethiopia in 1970 ago.Humanlike primate species are known as "Lucy" was thought to have existed 3.2 million years ago. Then from the findings, whether man is the evolution of Lucy?"That's what we are currently debating," said Villmoare. But so far there has been no finding of human fossils of Homo Erectus or a relatively large brain volume in the range of age who live Lucy was.In line with Brian, William Kimbel said, "This latest discovery is believed to be a more primitive man - who lived in the past Lucy and the next man - because it has the characteristics of a mixture of both types are,"Furthermore, the results of repeated reconstruction of bones belonging to Homo habilis published scientific journal Nature Journal is thought to be derived from the findings of a new human fossil found at this time."These findings help us in tracing human evolution period of millions of years ago which has been a mystery," said Professor Fred Spoor of University College London.Meanwhile, Professor Chris Stringer of the Natural History Museum in London rate, these findings have revealed new facts are very important. According to him, these findings reveal the characteristics least 'first man'. But he stressed the jaw fossil findings are not sufficient to disclose in detail."It is a challenge for us to reveal how the characteristics of early man first, whether we are from the figure that toothed and small jaw with a brain the size of a large, long legs or other characteristics," said Chris.
