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 diet, but can begin consuming the same material as their adult counterparts. The major threat to biodiversity for the Cope's arboreal alligator lizard is determined by the IUCN Red List to be the destruction of their habitat. Degradation and fragmentation of their suitable habitat has occurred as a side effect from construction, agricultural formation, and coal mining, as these activities require deforestation in these areas. These lizards are also frequently used in the pet trade, taking them from their native habitats and distributing them around the globe, which also depletes their native population sizes. Their native geographic range in Guatemala