Dolphins live in all the world’s oceans and even some of the largest freshwater rivers. Like whales, they’re considered cetaceans, or marine-dwelling mammals. There are four main families of dolphins, ...

From baby teeth to ‘conveyor belt’ molars, here’s why humans—and other mammals –grow and replace their teeth in such ...

A study of dolphin jaw anatomy suggests their teeth might act as antennae for sound waves, potentially helping to explain how they hear and use echolocation underwater. “Our findings support the ...

The residents of Fanalei Island, in the Solomon Islands, say the lucrative hunts will help them buy land elsewhere and move off their sinking home. A pod of dolphins off the coast of South Malaita in ...