Turtles, water snakes, crocodiles, alligators, frogs, porpoises, dolphins, whales, and several other water going creatures will drown if kept underwater too long. Unlike fish, these animals require a certain amount of air in order to survive.

Wolves are highly territorial animals, and generally establish territories far larger than they require to survive; in order to assure a steady supply of prey. Territory size depends largely on the amount of prey available: in areas with an abundance of prey, the territories of resident wolf packs are smaller.