Orca can weigh up to 8 tons. They can be trained to put on a show to entertain guests, like many other marine animals. It eats meat and fish. It will also eat penguins, dolphins and sharks if one is in its exhibit, if the orca is hungry can stalk and kill animals like polar bears and deers. In Zoo Tycoon the orca is, besides some whales, the biggest animal you can have in a tank.