Comparision of the New World Monkeys and Old World Monkeys (Essay Sample)

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New World Monkeys vs. Old World Monkeys
Most of the world’s monkeys flourish in the sub-tropical and tropical areas of Central and South America, Africa, and Asia. They are also outside the tropical regions of Africa and Asia (Jardine 45). There is a belief that about forty million years ago, there was a significant division among the monkey species. The Old monkeys and the apes were living in the tropics of Africa and Asia, and the New World Monkeys were living in America. Although monkeys appear to have same external appearances, a closer look reveals distinctive and unique differences between the Old World monkeys in the New World (American) monkeys. This paper aims to compare the New World and Old World monkeys.
On one hand, the Old World Monkeys are generally larger in size. They have flat fingernails in instead of sharp. Also, their nostrils point downward and narrow. Most of them have buttocks with paddling and without hair. These monkeys can be found on lands and in trees. The common monkeys under this category include the Snow Monkeys and Baboons (Jurmain, Lynn, and Wenda 45). On the other hand, New World Monkeys are generally smaller in size. They have sharp and long fingernails since they spend most of their times in trees. They have relatively wider and round-shaped nostril. As opposed to the Old Monkeys, they don’t have padding and cheek pouches in their buttocks. The New World Monkeys can see the world in color the same way as human beings while the Old World monkeys can only see the world in black and white. It is believed that it is due to genetic mutation.
Regarding their dental formulae, a study on the New World and Old World monkeys reveals that the New World monkeys have three premolars and molars rather than two. Their molars are comparatively larger as compared to the Old World monkeys. Also, the New World monkey's last molar is relatively smaller, and in some cases, it is missing at all. On the other hand, the Old World monkey's premolars in the mandible are sectorial, i.e. they majorly use them in sharpening the upper canine. Their molars have cusps that are sharply connected.
The two most common species of the New World monkeys include Marmosets and Callimicos (Minot 67).
There is a strong belief that the astonishing care that the young monkeys receive is part of the habits of the New World Monkey. The care given by the New World monkeys to their young ones has attracted a great debate worldwide. There are several animal experts who believe that all primates have a strong desire to take a good care of their young ones and to form strong bonds with the...