CLASSIFICATION
CHARACTERISTICS OF PRIMATES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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New World monkeys
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Old World monkeys
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Prosimains
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apes
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Detailed explanation-1: -New World monkeys have an additional premolar tooth in their mouths; they have three while Old World monkeys only have two (2). Old World monkeys have fingernails and toenails, while New World monkeys often have claws on all of their digits with the exception of the big toes of marmosets and tamarins (2, 3).
Detailed explanation-2: -In New World monkeys (the Platyrrhini, meaning “flat nosed”), the nose is broad, and the nostrils are set wide apart, well separated by a broad septum, and point sideways.
Detailed explanation-3: -The clade for the New World monkeys, Platyrrhini, means “flat nosed". The noses of New World monkeys are flatter than the narrow noses of the Old World monkeys, and have side-facing nostrils.
Detailed explanation-4: -The New World monkeys have a long non-prehensile tail. The old-world monkeys have a short non-prehensile tail.