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Steller's Sea Cow

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The reading states that a huge marine animal known as Steller`s sea cow had been became extinct, and provides three reasons of support. However, the professor explains that no one know why this creation became extinct, and refutes each of the author`s reasons. Firstly, the passage claims that the extinction of sea cows were because of over hunting that made from native Siberian. Although, the professor refutes this by saying these creations were massive in weight, moreover native Siberian were not big population. Therefore they did not have to catch a lot of them in order to feed them. Only one enough to feed hundreds of them. Secondly, the article avers that may be they became extinct on account of disturbance in ecosystem. Nevertheless,

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