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.

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

Researchers have observed killer whales and dolphins cooperating to hunt salmon off the coast of British Columbia, marking ...

Echolocation is a type of sonar used by two kinds of mammals, bats and whales. Bats are mammals that often fly in the dark. Some bats use sonar to navigate (find their way) and to find prey. Whales ...

New research suggests the two top predators have forged a co-operative rather than competitive relationship to find and feast ...

Rescue Crew and Stranded Dolphins: IFAW personnel respond to common dolphins in Wellfleet, Mass., a global hotspot for mass strandings of dolphins. Partnerships and collaborations between researchers ...

Researchers say the behavior has never before been observed in the population. Watch dolphins and killer whales hunt together ...

Baby beluga whales are some of the most unique whales in the entire ocean. They have special adaptations that set them apart from other whale species. They also make incredible sounds that have ...

For the first time ever, a unique cooperative hunting arrangement between dolphins and orcas has been documented. Researchers ...

Canadian researchers capture rare video of killer whales and dolphins working together to forage salmon off B.C. coast.