Arboreal theory and feet that were capable of grasping. This was also a result of arboreal life, which required a great deal of crawling along branches, and reaching out for fruit and other food. These early primates were likely to have eaten foods found in trees, such as flowers, fruits, berries, gums, leaves, and insects. They are thought to have shifted their diets towards insects in the early Cenozoic era, when insects became more numerous. 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
Brazilian arboreal mouse found in four other localities in Brazil, near Ubatuba in São Paulo State, including in Pincinguaba State Park, and near Viçosa in Minas Gerais State. It typically lives in Atlantic forest, often among bamboos, and also in modified forest habitats. Little is known about this species and its natural history. Several specimens were caught in pitfall traps sunk in the ground, but it is thought that it is an arboreal rodent, or one that scrambles among the undergrowth, because of the morphology of its feet. Examination of the stomach contents of one individual that was caught showed that it had