A widely publicized killer whale attack once seemed to explain why white sharks disappeared from a key aggregation site. Long-term tracking now suggests the reality is more nuanced. Killer whales (Orc ...

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

Out of season, the chances of seeing wildlife might be lower but, the encounters can be even more incredible, as these wildlife lovers learned when they came face to face with orcas.

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 ...

In a groundbreaking discovery off Vancouver Island, scientists have documented killer whales and dolphins hunting Chinook salmon together. Drone and underwater footage reveals these intelligent marine ...

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 ...

Researchers at Washington State University and the Alaska Department of Fish and Game are using collar cams to study a remote ...

You may think that dolphins are super cute sea creatures to view from the shore and boats, but for killer whales, they are food! That makes them a legitimate hunting target. This dolphin found out the ...

(CNN) — A pod of Pacific white-sided dolphins off the coast of British Columbia have been observed cooperating with orcas, a traditional enemy that’s better known for taking out great white sharks ...