fossil "h. erectus" skulls found in java in the 1930s have recently been redated. there are 12 skullcaps (top part of skull) and two lower leg bones. the recent research shows that on java, "h. erectus" survived to about 100,000 years ago. the research gives a definitive age of between 117,000 and 108,000 years ago. that is much a much longer survival than in any other part of the world, so far as is known. this means, says the report, that "h. erectus" was still around when our own species was [elsewhere] walking the earth. java is an island, and presumably it had not yet been discovered by neanderthals or our own species. remains suggest that our own species did not reach java until about 39,000 years ago.