whales are about the same size as many dolphins, and
have robust bodies, with a dark 'cape' along their back.
They have slightly paler blue- black, or brownish grey
sides, and a large white patch on their belly which
is split in half by a deep groove. Sometimes the body
is scarred - perhaps because of struggles with large
prey such as dolphins, or with other pygmy killer whales.
They have very rounded foreheads without a beak,, and
some animals may have a white chin under their lower
lip. The dorsal fin is tall and slightly pointed, and
the flippers are long with rounded tips. The upper jaw
has between 16 and 24 sharply pointed teeth, and the
lower jaw has between 20 and 26.