False killer whales are actually a type of large dolphin, but the name stuck due to their physical resemblance to actual killer whales, or Orcas. Some synonyms for "false killer whale" include the blackfish, Pseudorca crassidens, and the pseudorca. These synonyms can be useful when discussing the animal with different audiences or in different contexts. For example, the scientific name, Pseudorca crassidens, might be more appropriate when discussing the animal in a scientific paper, while "blackfish" might be more commonly recognized among the general public. Regardless of the name used, false killer whales are fascinating creatures that inhabit many of the world's oceans.