Everything about The New World Monkey totally explained
The
New World monkeys are the four families of
primates that are found in
Central and
South America:
Cebidae,
Aotidae,
Pitheciidae and
Atelidae. The four families are ranked together as the
Platyrrhini parvorder. They differ from other groupings of monkeys and primates, such as the
Old World monkeys and the
apes.
About 40 million years ago the
Simiiformes infraorder split into parvorders Platyrrhini (New World monkeys—in South America) and
Catarrhini (
apes and
Old World monkeys—in Africa). The Platyrrhini are currently conjectured to have migrated across the
Atlantic Ocean to
South America on a raft of vegetation similar to the vast pieces of floating
mangrove forest that storms occasionally break off from the tropical African coast. At that time the Atlantic Ocean was less than the present 2800km wide.
Characteristics
New World monkeys differ slightly from Old World monkeys in several aspects. The most prominent difference is the nose, which is the feature used most commonly to distinguish between the two groups. The scientific name for the New World monkeys,
Platyrrhini, means "flat nosed". The noses of New World monkeys are flatter, with side facing nostrils, than the narrow noses of the Old World monkeys. New World monkeys (except for the
howler monkeys of genus
Alouatta) also lack the
trichromatic vision of Old World monkeys. Platyrrhines also differ from Old World monkeys in that they've twelve
premolars instead of eight. New World monkeys in the family Atelidae are the only primates with tails that are
prehensile. Many New World monkeys are small and almost all are
arboreal, so knowledge of them is less comprehensive than that of the more easily observed Old World monkeys. Unlike most Old World monkeys, many New World monkeys form
monogamous pair bonds, and show substantial
paternal care of young.
Classification
Further Information
Get more info on 'New World Monkey'.
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