Orca, also known as "killer whale", is a aquatic mammal related to whales and dolphins. 26 feet long and 7 feet tall. Orca's live in the cold waters of the Arctic and hunt together in pods. They communicate with each other through clicks and whistles just like dolphins. Orca whales have a bite force of 19,000 pounds. They use their body's to swim into and bash at speeds of 35 mph.