Arboreal theory Arboreal theory This theory is proposed by Grafton Elliott-Smith (1912) who was a neuroanatomist who was chiefly concerned with the emergence of the primate brain. The arboreal theory claims that primates evolved from their ancestors by adapting to arboreal life. Primates are thought to have developed several of their traits and habits initially while living in trees. One key component to this argument is that primates relied on sight over smell. They were able to develop a keen sense of depth perception, perhaps because of the constant leaping that was necessary to move about the trees. Primates also developed hands
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