In captivity a Killer Whale will not grow to a big size, this is because in the wild they will swim miles every day and in a tank, they can't really swim as far.
Orcas have flat teeth and can tear apart a full grown male seal.
Free Willy's real name is Keiko, a 24 year old male. Bottle nosed dolphin, Dusky dolphin, Spinner dolphin, Common dolphin, River dolphin, White beaked dolphin. Killer Whales communicate with Ecoloation, a series of clicks, squels and high pitched notes. Ecoloation means simply a way of communicating, they do this to hunt, talk to each other while travelling and play . A Killer whales brain is 4 times bigger than a humans.