It seems easy to train some animals, especially domesticated ones, to obey basic orders. This 30-year-old walrus at the Point Defiance Zoo and Aquarium in Washington rose to the challenge by not just being able to sit, heel, and roll over when told to: He can also make different sounds as per his trainer’s commands! Hear him roar, growl, splutter, and whistle by checking out this video.
(Screencap via YouTube)