These days, all fish have teeth. The shapes of their teeth vary according to diet, ranging from the little pegs of goldfish ...

You probably don’t think much about teeth until a dentist brings them up. But across the animal kingdom, tooth counts can get ...

Bearded dragons originally come from arid, scrubby regions of Australia, where there’s plenty of heat and light to go around. In the past decades, they’ve become a popular exotic pet in the West.