Dwarf killer whale

The Dwarf Killer Whale is a type of Orca found in Antarctic waters believed by some scientists to be a distinct species from the larger Orca found throughout the world's oceans. Primarily eating fish rather than mammals, this ecotype averages less than 6 meters 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 orca exist in the southern ocean.Pitman, Robert L. et al. A Dwarf Form of Killer Whale in Antarctica Journal of Mammalogy 88(1):43-48, 2007, Pitman, Robert L. and Ensor, Paul. "Three forms of killer whales (Orcinus orca) in Antarctic waters" Journal of Cetacean Resource Management 5(2):131–139, 2003

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