Orcas, or killer whales, are deadly and beautiful apex predators.

As if orcas weren’t frightening enough, experts think they are getting even smarter as they have started to learn some terrifying new behaviours. The whale species, commonly known as killer whales, is ...

One of two rare elephant seals which arrived at Dudley Zoo.from the Antarctic in February, 1972. They were brought to the zoo ...

While well-documented in the Northern Hemisphere and Antarctica, much less is known about killer whales (Orcinus orca) in ...

In a baffling show of generosity, killer whales across the globe are giving fish to humans—and scientists are racing to ...

Killer whales are one of the most intelligent animals; only humans have a larger brain relative to their body size, according ...

A new report from a group of more than 30 experts says a population of endangered killer whales off the coast of British ...

Short-beaked dolphins range between 6 feet and 8 feet long and usually weigh around 170 pounds, according to the National ...

A new report from a group of more than 30 experts says a population of endangered killer whales off the coast of British ...

A lifeless whale was found Wednesday stranded just meters off a beach in the outskirts of Buenos Aires. Experts from the ...

A beluga whale at Chicago's Shedd Aquarium is the first to successfully recover from general anesthesia in captivity after a surgery to remove a network of cysts.