Dolphins evolved from land-dwelling creatures millions of years ago. As they adapted to life in the ocean, they also grew to have many more teeth than their terrestrial ancestors. Because dolphins ...

These Mississippi dolphins get their teeth brushed and they get belly rubs, too 'It's not toothpaste like you and I would think. It's not like the Colgate you get at the supermarket.' ...

Spinner dolphins have up to 240 teeth, while Risso's dolphins have only 14. Dolphins send out high-pitched sounds and listen for their echoes to build an image of their surroundings.

Rome, the Eternal City, is revered for its history, art, culture, and food. Yet, few people know that less than an hour away, ...

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 ...

Dolphin teeth necklaces for sale at a market in Honiara, the capital of the Solomon Islands. In recent years, most villagers have fled to a neighboring island.

Baleen whales don't have teeth, but they and dolphins share a common ancestor, and both rely on complex vocal communication in a dark underwater environment.

But because dolphins have lots of sharp teeth, even a gentle bite can injure people. Swimmers in the area are being warned to get out of the water if they see a dolphin.

Bones of prehistoric ancestor to dolphins found in Summerville. The 29 million-year-old killer had knife-like teeth and a bite more powerful bite than that of T. rex.