Animals can be trained to do the most usual things but once you see a walrus exercising, you will know that you have seen everything! I had to laugh the whole way through this video, as the walrus did one exercise after another but once it hit the sit ups, I was laughing so hard that I almost fell out of my chair.
Both the male and the female walrus have tusks that are used for cutting through the ice, gripping onto the ice to get out of the water and in self-defense. The tusks on this walrus probably give it more stability while it is doing its workout! LOL