Primates also have opposable thumbs that allow them to grab and manipulate opjects. They tend to have relatively shortened snouts, rely more on vision than smell, have five fingers and toes and have nails instead of claws. They have larger brains relative to their body size than other animals, and males tend to be larger than females. There are certain physical features that help set primates apart from other animals. Catarrhines have narrow downward facing nostrils, while platyrrhines have broad, flat, sideways facing nostrils. Lemurs and aye-ayes are found in Madagascar, galagos are found in Africa, and lorises are found in South East Asia.Ĭatarrhines and platyrrhines are distinguished by the shape of their nostrils. The strepsirrhines, or wet nose primates, includes lemurs, aye-ayes, lorises, and galagos. Apes are found in Africa and South East Asia, and tarsiers are found only in South East Asia. Haplorrhines are split into three groups: 1) the catarrhines, old world monkeys, apes, and humans 2) the platyrrhines, new world (South American) monkeys, and 3) tarsiers. The haplorrhiines, or dry nose primates, include monkeys, apes, humans, and tarsiers. The word haplorrhine translates to dry nose, and the word strepsirrhine translates to wet nose. Primates are organized into two groups, Haplorrhines and Strepsirrhines. What is a primate?Ī primate is a mammal in the order Primate. There are certain characteristics that define us as primates. We humans are primates, along with a lot of other apes and monkeys. We’re starting to understand the diverse behaviors in the order and the relationships between families a bit more. Today, the controversy is a tad less intense, yet rages on in some circles. Few debates have stirred such controversy as our own human relationship with the monkey.
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