Exploring the Key Characteristics of Infraorder Platyrrhini: New World Monkeys in Central and South America

Infraorder: Platyrrhini

All new world monkeys

Infraorder Platyrrhini, also known as New World monkeys, includes monkeys that are primarily found in Central and South America, as well as parts of Mexico. These monkeys are characterized by their broad, flat noses and nostrils that point outwards.

Below are some key characteristics of the Platyrrhini:

1. Dental Formula:

New World monkeys have a unique dental formula, with three premolars, one more than Old World monkeys. Their dental formula is 2.1.3.3, which means they have two incisors, one canine, three premolars, and three molars on each side of their jaw.

2. Tail:

Most New World monkeys have a prehensile tail, which means their tail is adapted for grasping and holding onto branches. These tails have a hairless gripping pad at the end, called a terminal disc, which provides a secure grip.

3. Diet:

Platyrrhine monkeys have a varied diet, including fruit, insects, leaves, and sometimes even small animals. They have a diet similar to that of Old World monkeys, but they lack the sharp, pointed cusps on their teeth that are necessary for cracking open hard shells, so they do not consume as many seeds, nuts, and insects as their Old World counterparts.

4. Social Structure:

New World monkeys live in a range of social groupings, including monogamous pairs, family groups, and larger social groups. Their social structure varies depending on the species and their habitat.

5. Habitat:

Platyrrhine monkeys are found in a variety of habitats, including rainforests, savannas, and mangrove swamps. Some species have adapted to living in dryer environments and have also been successful in urban areas.

6. Reproduction:

Most New World monkeys have a long gestation period of around five to seven months, which is longer than most Old World monkeys. Females typically give birth to a single offspring, which they care for until it is independent.

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