Beaked whales have rarely been seen. Now scientists are using underwater sounds to help identify these mysterious creatures.

Dolphins and whales use sound to communicate, navigate and hunt. New research suggests that the collections of fatty tissue that enable toothed whales to do so may have evolved from their skull ...

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In a new book called Why Whales Sing, Eduardo Mercado details his life's work to try and understand what whale songs are all about.

A montage shows pictures of Kim Kardashian and an orca. Scientists have found that toothed whales can produce a vocal fry, just like Kardashian.Ronald Martinez/Getty Images; iStock / Getty Images Plus ...

Toothed whales – like dolphins and belugas – might live in the ocean, but they have some big things in common with cave-dwelling bats. They’re all mammals that live in dark places and use echolocation ...

Biologists discovered killer whales and dolphins working together to hunt salmon, a behavior never before documented in this ...

Off the coast of British Columbia, dolphins lead killer whales to salmon and earn their share of lunch, a new study reveals.

Questioning the purpose of whale song — for love or echolocation? When Eduardo Mercado first heard a whale singing decades ago, he didn’t accept that the continuous pattern of sounds they were ...

Genetic analysis finds evidence suggesting that acoustic fat bodies in the heads of toothed whales were once the muscles and bone marrow of the jaw. Dolphins and whales use sound to communicate, ...