Animal locomotion many of these same principles may be applied to climbing without trees, such as on rock piles or mountains. The earliest known tetrapod with specializations that adapted it for climbing trees, was "Suminia", a synapsid of the late Permian, about 260 million years ago. Some invertebrate animals are exclusively arboreal in habitat, for example, the tree snail. "Brachiation" (from "brachium", Latin for "arm"), is a form of arboreal locomotion in which primates swing from tree limb to tree limb using only their arms. During brachiation, the body is alternately supported under each forelimb. This is the primary means of locomotion
Cope's arboreal alligator lizard aurita" are primarily omnivores, but can live on either insects or plants for long periods of time. In times of optimal conditions, they will often prefer to forage for abundant insects such as crickets and grasshoppers as well as other invertebrates such as caterpillars, snails, spiders and mealworms. In addition, alligator lizards also rely on eating bromeliads, which serve as a vital source of energy when insect abundance depletes. Because of this, presence of bromeliads growing on and around their habitat is an important factor when determining their immediate habitat location. It typically takes Cope's arboreal alligator lizards until the