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Nature

False Killer Whale

What is false killer whale?

· Emily Grant

Key facts

Scientific name Pseudorca crassidens[2]
Family Delphinidae[2]
Type Oceanic dolphin[2]
Habitat Tropical and temperate waters[2]
Color Dark grey-black[1]
Common name origin Similar skulls to the killer whale[1]

The false killer whale is a large, dark oceanic dolphin in the family Delphinidae, scientifically named *Pseudorca crassidens*, found in tropical and temperate waters.

Context

The false killer whale is a species of oceanic dolphin in the family Delphinidae, scientifically named *Pseudorca crassidens* [2]. It is a large, dark dolphin found in tropical and temperate waters, and it is commonly confused with The Killer because of its name and similar skull shape [1]. It lives in deep offshore waters and feeds on fish and squid [3]. Its conservation status varies by source: one lists it as Near Threatened, another as Data Deficient [2].

Documented claims

  • It is among the largest members of the dolphin family. [2]
  • It feeds on fish and squid. [3]
  • It is listed as Near Threatened on the IUCN Red List in one source, but Data Deficient in another. [2]

Questions and answers

Why is it called a false killer whale?

It is called false killer whale because its skull shape is similar to that of the killer whale, though it is a different species [1].

Are false killer whales aggressive?

They can prey on other marine mammals, including dolphins, and have been reported attacking sperm whales [3].

Are false killer whales friendly?

They are known to be social and often travel in groups, but they are wild animals and should not be approached [1].

Sources

  1. False Killer Whale — fisheries.noaa.gov (retrieved August 3, 2026)
  2. Pseudorca crassidens (False killer whale) - OBIS-SEAMAP — seamap.env.duke.edu (retrieved August 3, 2026)
  3. False Killer Whale Facts: Habitat, Diet, Conservation & More — americanoceans.org (retrieved August 3, 2026)

Sources last checked August 3, 2026. · More in Nature