Which animal is known as the ''farmer of the sea''?

The animal known as the 'farmer of the sea' is the Pacific Northwest's sea otter. These marine mammals are highly intelligent and have been known to use tools, such as rocks, to crack open shellfish for food. Sea otters play an important role in their ecosystem as they are considered a keystone species. Their presence helps maintain the health and diversity of the kelp forest ecosystem, which in turn provides habitat for many other marine species.

Sea otters were hunted to near extinction for their thick fur in the 18th and 19th centuries, but conservation efforts have helped their populations recover. However, they still face threats from pollution, oil spills, and habitat loss.