Did first humans emerge from Middle East, not Africa?

Until now, researchers believed that homo sapiens, the direct descendants of modern man, evolved in Africa about 200,000 years ago and gradually migrated north, through the Middle East, to Europe and Asia.

Recently, discoveries of early human remains in China and Spain have cast doubt on the 'Out of Africa' theory, but no one was certain, the American Journal of Physical Anthropology reports.

The new discovery of prehistoric human remains by the Israeli university explorers in a cave near Ben-Gurion airport could force scientists to re-think earlier theories, according to the Daily Mail.

Archaeologists from the Tel Aviv University say eight human-like teeth found in the Qesem cave near Rosh Ha'Ayin - 10 miles from Israel's international airport - are 400,000 years old, from the Middle Pleistocene Age, making them the earliest remains of homo sapiens yet discovered anywhere in the world.

The size and shape of the teeth are very similar to those of modern man. Until now, the earliest examples found were in Africa, dating back only 200,000 years.

Other scientists have argued that human beings originated in Africa before moving to other regions 150,000 to 200,000 years ago.

Homo sapiens discovered in Middle Awash, Ethiopia, from 160,000 years ago were believed to be the oldest 'modern' human beings.

Other remains previously found in Israeli caves are thought to have been more recent and 80,000 to 100,000 years old.

The findings of Professor Avi Gopher and Dr Ran Barkai of the Institute of Archaeology at Tel Aviv University, suggest that modern man did not originate in Africa as previously believed, but in the Middle East.

The Qesem cave was discovered in 2000 and has been the focus of intense study ever since.

Along with the teeth - the parts of the human skeleton that survive the longest - the researchers found evidence of a sophisticated early human society that used sharpened flakes of stone to cut meat and other impressive prehistoric tools.

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