I really liked the teeth discussion in the article. Fascinating!

Canine teeth in some primate species get honed into sharp daggers that males can use as weapons in battles for territory and for the opportunity to mate with females.

Being an owner of many cats, you see this during mating. When a male mounts a female, he bites her at the back of the neck to hold her down. Is this what he’s referring to above?

Men have stubby canines, which many scientists take as a sign that the competition between males became less intense in our hominid lineage. That was likely due to a shift in family life. Male chimpanzees compete with each other to mate with females, but they don’t help with the kids when they’re born.

The male [Ardipithecus] teeth turn out to be surprisingly blunted. This result suggests that hominids shifted away from a typical ape social structure early in our ancestry.

The science blows my mind.