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Pollution: The Decline Of Sea Otters

Satisfactory Essays
The lecture and the reading both discuss the decline of Sea Otters. While the reading states that the pollution is the reason for downfall of these sea mammals, the lecture refutes this, stating that the Orcas-predation hypothesis are the main reason for the decline. First of all, The reading claims that the pollution is the cause because there were many sources of it along the Alaskan coast such as oil rigs and other major sources of chemical pollution from industries. Water samples from this region showed increased levels of chemicals which might have caused the decline of sea Otters. However, the lecture argues that Predation theory is correct since no fossils evidence has been found in this region. Furthermore, the professor states
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