How are neanderthals and homo sapiens different?

The Neanderthals were far more robust in structure than the Homo sapiens. They also had amazing projection in their nasal cavity, thought to have provided more surface area for mucus to warm the cold frigid air before entering their bodies. Homo Sapiens, however, have far smaller nasal cavities, as we do not live in such a cold environment. Homo Sapiens also have smaller and rounder brains than the Neanderthals, and steeper foreheads as a result.