Sea otters

The video explains the importance of kelp forests as habitats for marine life and the threat posed by sea urchins that feed on kelp. Sea otters play a crucial role in controlling the sea urchin population, thus maintaining the balance of the ecosystem. As omnivores, sea otters are part of a complex food web and are considered a keystone species due to their significant impact on the environment. Without sea otters, the kelp forest ecosystem would collapse, affecting various marine species.

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