Israeli archaeologists claim that they may have found the earliest evidence yet for the existence of modern man.
A Tel Aviv University team excavating a cave in Rosh Ha'ain in central Israel say they have found teeth that are approximately 400,000 years old. The earliest Homo sapiens remains found until now are half that old.
Archaeologist Avi Gopher said further research is needed to solidify the claim. If it does, he says, "that means that we have to rethink the basic reconstructions we have for human evolution."
Accepted scientific theory is that Homo sapiens originated in Africa and migrated out.
Sir Paul Mellars, a prehistory expert at Cambridge University, said the find is "important," but it is premature to say the remains are from modern man.
He said they are more likely related to man's ancient relatives, the Neanderthals.