The southern resident killer whale population is down to just 74 members since the most recent population census in July.

These three countries alone are suspected of killing nearly 45,000 whales since 1986, when commercial whaling was banned.

While killer whales (Orcinus orca) can trigger the immediate departure of white sharks (Carcharodon carcharias), extended absences from their aggregation sites are also part of the sharks' natural ...

Killer whales can scare white sharks away in the moment, but a 12-year study from South Australia shows that long disappearances from shark hotspots are often just part of the sharks’ natural rhythms.

THIS is the dramatic moment a diver witnessed a family of orcas feasting on a shark as its rag doll-like body hangs limp ...

There aren’t many animals in the ocean deadlier than orcas. As apex predators, they hunt with intelligence, coordination, and raw power. But despite their name, are killer whales truly dangerous to ...

Sightings of Antarctic orcas in Australian waters are very rare. A tour group in WA saw what appeared to be a pod of ...

Standing on the southern tip of the island at Dondra Head, where the Indian Ocean stretches endlessly in every direction, it is difficult to imagine that beneath those restless blue waves lies one of ...

Oman’s Environment Authority has issued a public warning urging people not to dive near orca whales (killer whales) after a video showing a man swimmi.

The unbelievable story is told in a new true crime podcast from NJ.com that is part investigation, part thriller.

Orcas have a sophisticated language to communicate, with populations in different parts of world even speaking in 'dialects' which can be mapped out ...

Captured off the coast of San Diego, the astonishing video pictured above captures the moment that a dolphin is punched on ...