… They have a rounded skull with large canonical teeth but unlike other species of dolphin the pygmy killer whale lacks a snout or beak. The best ways to distinguish between the two species are the pygmy killer whale’s frequent paired white tooth rakes, and the clear demarcation between the pygmy killer whale’s darker cape and lighter lateral pigmentation. Pygmy Killer Whales are also known to occasionally attack pods of small cetaceans. Little is known about the predators of Pygmy Killer Whales.

Pods swim in coordinated lines but become much more tightly packed when they are alarmed or feel threatened. The pygmy killer whale (Feresa attenuata) is a poorly known and rarely seen oceanic dolphin.

Although the species has been known to be extremely aggressive in captivity, this aggressive behavior has not been observed in the …

In terms of size the Pygmy killer whale can reach an average size of 6 – 8.5 ft in length and weigh between 250 – 400 lbs when fully matured. It derives its common name from sharing some physical characteristics with the killer whale.It is the smallest species that has "whale" in its common name. Pygmy Killer Whales are believed to be non-migratory, but little is known about their migratory habits. Pygmy killer whales are rarely encountered but when they are, they are most often seen in groups of between 1 and 33 whales, although this number can sometimes soar into the hundreds.

As stated earlier one of the resembling features these marine animals share with the killer whale is skin coloring, which is black to dark grey with lighter colored (whitish) markings on the under-body and lower jaw. Their diet includes squids, octopus and large fishes. Pygmy killer whales are easily confused with melon-headed whales because of their similar appearance.