|What is my age:||I am 21|
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By Bruce Bower.
June 24, at pm. Excavations in an Israeli sinkhole have unveiled a ly unknown Stone Age hominid group that contributed to the evolution of the human genus, Homo. Inhabitants of a site called Nesher Ramla, who lived abouttoyears ago, Neandertals and Denisovans as a third Eurasian Homo population that culturally mingled with and possibly interbred with ancient Homo sapiensresearchers say.
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Hominid fossils ly excavated at three Israeli caves, which date to as early as aroundyears agoprobably also belong to the ancient population represented by the Nesher Ramla finds, says an international team led by paleoanthropologist Israel Hershkovitz. Genetic and cultural mixing of Eurasian Homo groups during the Middle Pleistocene period — which ran from abouttoyears ago — occurred too frequently to enable the evolution of a distinct species in this case, the team says.
The fossils further complicate the human family tree, which has grown more complex in recent years with additions such as H. Work at Nesher Ramla uncovered five pieces of a braincase and a nearly complete lower jaw containing a molar tooth. Some of those bones contained stone-tool marks made during meat removal. Ancient Homo groups with roots at Nesher Ramla may have reached East Asia and perhaps mated with some groups already living there, he speculates.
Stone tools found with Nesher Ramla Homo fossils match implements of comparable age made from prepared chunks of rock by nearby H. Nesher Ramla Homo and H. Attempts to extract DNA from the Nesher Ramla fossils, which would reveal whether interbreeding took place, have failed. Evidence from Nesher Ramla fits a scenario in which the Homo genus evolved as closely related Middle Pleistocene populations and species, including Neandertals, Denisovans and H.
These ancient groups interbred, became fragmented, died out or recombined with other Homo groups along the way, producing a variety of skeletal looks seen in European and East Asian Homo fossils, Lahr suggests.
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