Killer Whale: Orca Families, Hunting Cultures & Ocean Life

Orcinus orca, the Killer Whale or Orca, is a highly social member of the dolphin family found in oceans around the world. Different populations can live remarkably different lives, with distinct diets, calls and hunting traditions.

Family groups at the centre of orca life

Many killer whale populations live in stable social groups built around related animals. In some well-studied populations, offspring remain closely associated with their mothers for many years. These long relationships create opportunities for knowledge and behaviour to pass between generations.

Culture beneath the surface

Killer whales do not all hunt in the same way. Populations can specialize on different prey and use learned hunting tactics that are shared socially. Their vocal traditions also differ, with characteristic calls helping members of a group remain connected.

Diet depends on the population

Some killer whale populations specialize heavily on fish, while others feed on marine mammals or other marine animals. These differences are so consistent that researchers use diet, behaviour, genetics and appearance together when describing different killer whale ecotypes.

Sound, movement and coordination

Orcas use clicks for echolocation and a range of other vocalizations for communication. Their black-and-white pattern, strong swimming ability and social coordination make them one of the most recognizable marine mammals.

From the field guide to Aves & Atlas

The tall dorsal fin, contrasting markings and powerful marine silhouette make the Killer Whale a natural subject for black-and-white field-guide art. Explore the Killer Whale T-Shirt, browse the Marine Life collection, or discover more mammals in the Mammals collection.