The peculiar beveled wear (inward from the lips) that tends to characterize the incisors of older Neanderthals may reflect: A. Their congenital lack of premolars. B. Their tendency to grind their teeth in their sleep. C. Intentional alteration of the face to increase sexual attractiveness. D. The use of front teeth as tools, e.g. holding animal skins while scraping them. E. The great power of their temporalis and masseter muscles.

The peculiar beveled wear (inward from the lips) that tends to characterize the incisors of older Neanderthals may reflect: A. Their congenital lack of premolars. B. Their tendency to grind their teeth in their sleep. C. Intentional alteration of the face to increase sexual attractiveness. D. The use of front teeth as tools, e.g. holding animal skins while scraping them. E. The great power of their temporalis and masseter muscles.