This historic image is a rendering of what Neanderthals may have looked like according to the excavated material and other data found around 1920 by the Field Museum of Natural History.

In recent studies, up to 3 percent of a modern human’s genetic code may be linked to that of a neanderthal. The neanderthal DNA may affect certain traits we have such as being a night owl, moodiness, as well as loneliness.

(Source: Pastchronicles)