Researchers studying amphibians in Asia have made an exciting discovery: a new species of frog with teeth, named Limnonectes cassiopeia, has been identified on the island of Luzon in the Philippines.

Adaptations of the teeth and jaws that allow the fish to adapt to a wide range of food sources and habitats are thought to be a factor in their success. Fish, including cichlids, have either ...

Only a handful of mammals can regrow teeth multiple times, compared to the 50,000 species of reptiles and fish. Take geckos, for example, who will replace all 100 teeth, or so, every 3 to 4 months.