Orcas (aka orca whales) ( ) ( are )whales. These ferocious creatures are also called killer whales. They are relatively small whales. They can be vicious predators, attacking virtually anything they detect. Orcas are about 30 feet long. They eat fish, squid, seals, and other whales. They can be vicious predators. ( Orcas are sometimes summoned by )druids. ( Orcas are seen in )Warcraft III and World of Warcraft: Wrath of the Lich King.