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Essay

Evolution of Birds

Essay specific features

 

Issue:

Science

 

Written by:

Stephanie Y

 

Date added:

November 20, 2012

 

Level:

University

 

Grade:

A

 

No of pages / words:

2 / 470

 

Was viewed:

5483 times

 

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Essay content:

Due to poor fossil records, some information regarding the evolution of birds are based on theories but during the last 30 years, the evolutionary relationship between birds and dinosaurs have become more firmly established. Some important evolutions of birds were the evolution of feathers, and avian locomotion (Bird evolution, 1996)...
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The body evolved in such a way for it to be fit to fly. For example, the front limbs became wings, and their breastbone was enlarged in order to support flight muscles. They also now have light, hollow bones. A significant modification was the evolution of a four-chambered heart, which also changed their circulatory system allowing them to breathe through their lungs (Birds, 1999)...
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General issues of this essay:
The birds Birds Die Too Differences between The Birds the Movie and The Birds short story The Birds the birds Birds Eye Birds of the Same Feathers The Birds The Birds The Birds The Birds The Birds Birds Birds Evolution of Birds
 

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