I want a rat that would live for 20 years.

Exotic-wise I would LOVE to own a white Siberian Tiger, Moutain Lion, African Lion, Bobcat, any and all big cats, a Timber Wolf, Llamas, a Giraffe, Capybara, Pigmy Hippo, Bald Eagle, Grey Fox, Fox Squirrel, Groundhog....the list goes on trust me!!!