Scientists discovered ancient marine reptiles that reached unprecedented trophic levels. These creatures exceeded today’s top predators.

Orcas travel the world’s oceans in groups called pods. Through their collective strength, they can take down large predatory fish like great white sharks. Watch the latest video from A-Z-Animals to ...

Social media users were blown away by the scene in the viral clip, with one saying: "I would be in heaven if this happened to me." ...

Marine mammal responders mobilized for the report of a stranded dolphin off Long Key State Park on Jan. 12. What they found ...

After consulting with federal authorities, rescuers decided the most humane course of action was to euthanize the animal.

SEATTLE — The mother orca known as J35, or Tahlequah, has been seen carrying her deceased calf for at least 11 days, drawing attention to the critically endangered southern resident killer whales.

A deep-ocean creature washed up on a Georgia beach for the first time — and two days later, so did another. The Tybee Island Marine Science Center received a report about a dolphin stranded on the ...

The whale was initially identified as a pygmy killer whale but was later updated to a melon-headed whale based on the head and flipper shape. It was thin and a site necropsy found that its ...

The bodies of two male melon-headed whales were found 50 miles apart along the southeastern coast of the United States.

Melon-headed whales, according to the National Oceanic and Atmospheric Administration Fisheries Division, are small, dark mammals closely related to pygmy killer whales and false killer whales ...