The quick and lively pygmy killer whale is most commonly found in herds of 12 to 50 individuals, although great herds of 100 or more have also been encountered (2). They are known to be playful, having been observed riding the waves around the bow of a boat, leaping high out the water and spyhopping, the act of raising the head and sometimes the upper body vertically out of the water (2). Pygmy killer whales can also be wary of boats and will cluster together when fleeing a disturbance (4). Their feeding habits are not well known but the remains of small fish and cephalopods have been found in the stomachs of stranded pygmy killer whales and, in behaviour that lends a little truth to their name, they are suspected to occasionally chase, attack and even eat dolphins (2).