Dwarf killer whale

The Dwarf killer whale is a type of killer whale found in Antarctic waters believed by some scientists to be a distinct species from the larger killer whales found throughout the world's oceans. Primarily eating fish rather than mammals, this ecotype averages less than 6 metres in length.

Robert L. Pitman describes using aerial photogrammetry to determine the size of numerous Type C killer whales, supporting earlier Soviet research which suggested that one or possibly two distinct species of killer whale exist in the Southern Ocean.