Dolphins may seem cute and friendly, but one of their ancestors was quite the giant and behaved like a killer whale, a new study has found. CNN values your feedback 1.

A killer dolphin is on the loose in British waters after it slayed one of its own kind - and then a shark. The bottlenose dolphin, which has been nicknamed Jack the Flipper, was caught on camera ...

A killer dolphin is on the loose in British waters after it slayed one of its own kind - and then a shark. The bottlenose dolphin, which has been nicknamed Jack the Flipper, was caught on camera ...

Like other dolphins, killer whales are famous for their intelligence and social nature. They form life-long relationships with their offspring and each pod has its own dialect to communicate and hunt.

But fits of romance are not what stand in the way of your fleet of killer dolphins. It's easy enough to train dolphins and sea lions to hunt for mine-like objects on the sea floor or mark ...

Killer dolphins with knives and pistols attached to their heads ... the Navy has tested a device called the Mark 6 Marine Mammal System: ... who can reel the enemy diver in like a snagged fish.

Prehistoric dolphins acted more like modern-day killer whales, according to a newly published study. The research, which appears in the scientific journal Current Biology, describes a 25-million ...

News about the animals escape from a military training program in Ukraine was fabricated and not for the first time.

Killer whales are known for their haunting songs consisting of complex whistles and clicks, but they can also learn "dolphin speak," a new study finds. She and her team collected sound recordings ...

Killer whales housed with bottlenose dolphins began making a high proportion of dolphin-like sounds, suggesting cross-species learning. Skip to main content.

A killer dolphin is on the loose in British waters after it slayed one of its ... EXCLUSIVE Inside Taylor Swift and Travis Kelce's South Florida hot spots... and how to vacation like the A-list ...