They are the largest member of the dolphin family. The Orca's skin is mostly black with distinctive white patches. Orcas have stocky bodies and a rounded head with a distinctive beak. They have a tall, falcate (sickle-shaped) dorsal fin and large, paddle-like flippers. The dorsal fin of the male is taller (up to 2 meters tall) and more upright than that of the female (whose dorsal fin is up to 1,5 meters tall).

Killer whale can reach lengths of 10 meters. Adult killer whale’s weight: 2,5-9 tons.