The Harbor Seal is a marine mammal found along the coastlines of the northern hemisphere, particularly in areas like the North Atlantic and North Pacific Oceans. They are known for their spotted coats, which can vary in color from gray to brown. Adult harbor seals typically weigh between 100 to 300 pounds and can grow up to 6 feet in length. These seals are excellent swimmers, using their strong front flippers to propel themselves through the water. They primarily feed on fish and invertebrates, often foraging in shallow coastal waters. Harbor seals are commonly seen resting on rocks or beaches, where they haul out to bask in the sun.