Their only enemy is human beings. The killer whale belongs to the family of dolphins and is the biggest dolphin. The male orca is larger than the female. 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 even been known to attack young blue whales and other large whales. Members of a pod frequently cooperate in hunts. The bonds between the close-knit members of Orca pods are strong and last for life. The members of a pod hunt together in a very sophisticated manner, attacking even very large prey and then sharing it. The pod members protect the young, the sick and the injured.