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

SeaWorld's beloved Katina has died. The water park has released the cause of death for the killer whale, who was believed to ...

SeaWorld Orlando officials announced the death Sunday of a 50-year-old killer whale named Katina.

SeaWorld Orlando announced that Katina, a killer whale in captivity for most of her 50 years, including 40 years at the ...

SAN ANTONIO, TX -- An ailing 12-year-old dolphin has died at SeaWorld San Antonio in the park's fourth animal death since last summer. A SeaWorld official said Tuesday that necropsy results are ...

ORLANDO, Fla. -- SeaWorld says trainers will no longer stand or ride on dolphins. The move follows nearly a year of pressure from "People for the Ethical Treatment of Animals" or PETA. However, ...

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Researchers analyzed nearly 200 whale-dolphin interactions, and conclude: They sure do seem friendly. Humpback whales (Megaptera novaeangliae) like the ones pictured here with bottlenose dolphins ...

A minke whale that was swimming in Long Beach Harbor earlier this month died from domoic acid poisoning associated with a toxic algal bloom that has stricken many other sea creatures, according to ...

In mid‑June, a rare case of mammalian altruism unfolded off the coast of Western Australia. A pod of dolphins escorted a young humpback whale from the confines of a shallow bay into deeper water.

From land-borne pathogens to high-speed vessel strikes, Pacific whales and dolphins are caught in a "perfect storm" where ...

SeaWorld has announced the death of its famed killer whale, Katina. "Katina was 50 years old, and her health had begun to ...