Description Male orcas can grow to be the size of a elephant. They can weigh 8,000 to 12,000 They are white on there bellies but black on the backs.
Defense and Predators Orcas were hunted by humans long ago. Orcas defend themselves by using their three inch long teeth.
Food Orcas hunt fish, walruses, seals, sea lions, penguins, squid, sea turtles, sharks, and other whales.
Hunting technique Orcas will knock their prey off the ice they were on. Groups of orcas will push the fish into small groups. Orcas will slap their tail so their prey on the ice will fall off. Orcas will also surround whales and chase, bite, and wear it down.
Habitat Orcas live in all oceans.
Interesting facts Orcas are dolphins. Male orcas dorsal fin can grow to be six feet tall.
Sources http://en.wikipedia.org/wiki/Killer_whale Killer Whales Up Close Kids.nationalgeographic.com Killer Whale and other Tooth Whales