Modern-day gorillas have much larger canine teeth than humans, and we can actively observe how they use them to compete with one another for mating rights with a female. Generally, the male with the ...

Chimpanzees are some of the smartest animals on the planet. However, chimpanzees can be very aggressive as well. As they ...

The pig’s mouth revealed its ordinary sharp, tusk-like canines saddled up beside smaller, slightly more human-looking teeth nubs. In theory, a similar process could play out in humans.

Similarly, perhaps, a human baring of teeth without a follow-up assault indicates friendship. Perhaps doing this smile-like, with a nearly closed mouth, indicates submission, necessary for friendship.

The finger-fitted dog toothbrush, if you aren’t aware, is a plastic tube worn over the human index finger, used to, supposedly easily, brush dogs’ teeth. One variation looks like the genitals ...

The extra-large, dagger-like canine teeth seen in male great apes have been missing from human ancestors for at least 4.5 million years – possibly because females opted for less aggressive partners ...