Pygmy Killer Whale This one is interesting. It is not related to the Killer Whale and is not a whale but a dolphin. The only thing that is accurate about its name is that it is not very large. Perhaps it should be called just the "Pygmy". However, it is very similar to another dolphin called the Melon-headed whale (we will learn about that one soon).
Not much is known about this 'whale' (I'm not sure if I should call it a whale). It is not typically aggressive in the wild, although there have been reports of aggressive behavior in captivity. Maybe is trying to tell us something.