False killer whale

The false killer whale (*Pseudorca crassidens*) is a large oceanic dolphin and the only living species in its genus, *Pseudorca*.

The false killer whale (Pseudorca crassidens) is a large oceanic dolphin and the only living species in its genus, Pseudorca. Despite its name, it is not a true killer whale and is more closely related to other dolphins. It occurs in tropical and warm temperate seas worldwide, usually in deep offshore waters.

Taxonomy and naming

The false killer whale is classified as Pseudorca crassidens, an oceanic dolphin in the family Delphinidae. Its common name derives from similarities in skull shape with killer whales, rather than a close evolutionary relationship.

Distribution and habitat

False killer whales are found in tropical and warm temperate waters around the world, preferring deep offshore environments. They are generally uncommon and difficult to study because they typically remain far from shore.

Physical characteristics and behaviour

This species is a large, dark-coloured dolphin with a streamlined body and a rounded head. It can reach about 6 metres in length. False killer whales are social animals that often travel in groups, sometimes approaching boats and occasionally leaping.

Diet and ecology

False killer whales feed mainly on fish and squid, and may also take larger prey such as some large fish species. They occupy a role as a large predatory dolphin in their marine ecosystems.

Conservation status

The false killer whale is assessed as Data Deficient on the IUCN Red List because many populations have not been adequately surveyed. Some local populations, including those around the main Hawaiian Islands, have been identified as a conservation concern.