caption: Slide 2 of 26: Small, nocturnal marsupials native to Australia and New Guinea, sugar gliders have large flaps of skin that stretch from their arms to their sides and allow them to glide through the air. They need space to fly or glide around. Extremely social in the wild, they need to be kept in pairs in captivity -- never alone. If not handled daily, sugar gliders won't become tame and could start to get nippy and chew on things. Sugar gliders are illegal to own in some states, while others require an exotic pet permit or proof that the pet was obtained from a regulated supplier.