Monkey mandrill, almost long and weighing up to . Some are arboreal (living in trees) while others live on the savanna; diets differ among the various species but may contain any of the following: fruit, leaves, seeds, nuts, flowers, eggs and small animals (including insects and spiders). Some characteristics are shared among the groups; most New World monkeys have prehensile tails while Old World monkeys have non-prehensile tails or no visible tail at all. Old World monkeys have trichromatic color vision like that of humans, while New World monkeys may be trichromatic, dichromatic, or—as in the owl monkeys and greater galagos—monochromatic.
Animals in Buddhism but by state of mind. This world was called "Tiryagyoni" in Sanskrit, "Tiracchānayoni" in Pāli. Rebirth as an animal was considered to be one of the unhappy rebirths, usually involving more than human suffering. Buddhist commentarial texts depict many sufferings associated with the animal world: even where no human beings are present, they are attacked and eaten by other animals or live in fear of it, they endure extreme changes of environment throughout the year, and they have no security of habitation. Those that live among humans are often slaughtered for their bodies, or taken and forced to work with