In biological context, arboreal is a descriptive term used to associate with trees. For instance, a form of locomotion wherein organisms move about in trees is called an arboreal locomotion. Movements such as climbing, swinging, or gripping on trees are examples of arboreal locomotion and animals that are adapted for this kind of locomotion are called arboreal animals. Examples of arboreal animals are squirrels, koalas, primates, sloths, spider monkeys, leopards, chameleons, geckos, bats, tree frogs, snakes, birds, lizards, and tree snails. These animals spend most (some all) of their time among trees.