Research Paper On Sea Otters

Sea otters number in the wild life is declining rapidly due to two possible problems: environmental pollution and attacks by predators. While the reading passage supports the claim that the decreasement of the sea otters is caused by the pollution, especially by human activities, the lecture points out that the assaults by the predators are the actual problem.

First of all, sea otters are vurnerable to be hunted, and they have their natural predators: the orcas. It is not caused by the pollutions, contrary with the reading passage, since there are only a little number of sea otters that die on the shore. It supports, on the other hand, the lecture, since predators usually eat their prey after they kill it, which means that the sea otters dead bodies are not supposed to be on the shore. …show more content…
In order to fulfill their food, orcas attack and eat sea otters instead. Therefore, their deads are not caused by oil rigs or chemical substances. In addition, the orcas are hunting for sea others exclusively, so they will not decrease the number of other animals.

Finally, the orcas, which are the main predators of sea otters, are capable to reach the rocky ocean, which is the natural habitat of sea otters. This is correcting the assumption that the uneven pattern of sea otters decreasement, which it is assumed that it is caused by sea currents and other environmental factors.

In conclusion, the lecture proves that the decreasement of sea otters is not caused by the pollutions, but it is caused by the attacks of their