Primates Essay

1358 Words 6 Pages
Primates

Since the beginning of time, man has evolved through primate evolution. Each primate has acquired different characteristics over a period of millions of years. The ecosystem has experienced an enormous change in this phase. Most major changes have occurred due to the phenomenon of continental drift. Other such factors are deforestation, natural calamities and, more recently, global warming. These changes have caused primates to become less arboreal and more and more terrestrial. In order to survive the pressures of natural selection, terrestrial life and other factors primates have developed more upright locomotion, changes in body configuration, increase in size and loss of hair. Over a period of millions of years, the
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The Coquerel's Sifaka are another example from this era. They originated from the forests of Northwest Madagascar. They eat mostly leaves, flowers and fruits. They are the second largest lemurs. Sifakas have long legs, which enable them to jump from tree to tree in an upright position. Another primate belonging to this era is the Galago. They are bushed babies varying from cat to rat size. The most striking features of the Galago are its huge eyes, long tail and large hind legs. Brain size is average and their vision and hearing are well adapted to nocturnal insect hunting. Their limbs enable them to make rapid leaps from branch to branch. They claim territory with there scent leaving smelly footprints.
The Crowned Lemur, which is also an example of this era, is found in extreme Madagascar. They eat fruits, flowers and leaves. They stay mainly in trees and are active during the day and at dusk. The crowns on their heads are furry head caps. Females have a lighter crown then males do.
The second epoch is Eocene (53 m.y.a.). A group of primates called the tarsiers came into existence in this era. They came from Southeast Asia in the tropical forests. Tarsiers usually leap onto their preys from lower branches and shrubs. They classify as prosimians and are related to lemurs and lorises. The similarities are pertaining to their body size, large ears and grooming claws. They have very long toes and fingers and their fingertips seem to be composed of a rubbery
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