Kinkajous naturally live in the rain forest and are related to raccoons and Coatimundi. They are not related to monkeys. They have fully prehensile grasping tails, which can be used like an extra "hand" when climbing. The tail can be almost as long as the body and is also used for balance when moving from one tree limb to another.
Kinkajous are very mellow-mannered which makes them a delicate and cuddly pet. Kinkajous are by far the best large exotic I have ever dealt with. They have velvety soft fur and their palms have bare skin.