Dolphins live and hunt in large social groups called pods, and they communicate with each other using high-pitched clicks and ...

While the average person has 32 teeth, some species of dolphin possess as many as 240. Why so many? Not all species are quite so lucky – Risso’s dolphins only have four to 14 in their lower jaw.

A man in Scotland recently discovered the 8,000-year-old skeleton of a dolphin while digging a swimming pool in his backyard.