Modern humans and Neanderthals did produce hybrid offspring, but it's unclear if a frontal bone from Germany belonged to one of them. Discovered in Hahnöfersand, the frontal bone was later subjected to radiocarbon dating, yielding an age of 36,000 years. This ties in perfectly with the hybrid theory, as Neanderthals and Homo sapiens are known to have interbred at roughly this time.... [2238 chars]