A new study reveals that bone-cracking hyenas uniquely maintain bite efficiency as their teeth wear, unlike other carnivores.

It causes skin to melt away from the bone and can break down a victim's jawbone, but white phosphorus - known in Vietnam as Willie Pete - is still used by sections of the world's military.

Wisdom teeth usually emerge in late teens or early twenties However due to limited space they can sometimes grow sideways ...

“Butterscotch had such serious dental disease that infection ate through his jawbone!!! Poor guy was living with necrotic tissue and bone in his mouth and jaw!” the shelter said ...