It wasn't oversize because of cold temps
(NEWSER) - If you think Neanderthals, with their broad foreheads and big noses, were, well, not so attractive, don't blame the cold for their looks . For 150 years, scientists have theorized that Neanderthals' distinctive appearance was an adaptation that allowed them to withstand ice-age Europe's freezing conditions—but new research has found that wasn't the case. The thinking used to be that Neanderthals' enlarged sinuses helped warm the cold air, but research shows that Neanderthals' sinuses were no larger than ours, and aren't responsible for their oversize nasal cavity. More»