EN
Endangered
A
Animalia
E
Endemic
Genovesa Santiago
Galapagos fur seals are found on the rocky shores of the western islands in the Galapagos Archipelago. Endemic to the islands, they are classified as Endangered by the IUCN due to their declining numbers. These seals are the smallest of the otariid family, characterized by a grayish-brown fur coat. While they resemble Galapagos sea lions, fur seals are smaller with broader, shorter heads. They have large, bulging eyes, more prominent ears, and larger front flippers, which help them navigate rocky terrain. Their fur is thicker than that of sea lions, making it a key distinguishing feature. Although often thought to be less common than sea lions, their population sizes are quite similar. However, fur seals are less visible to tourists because they prefer shaded, rocky areas. Galapagos fur seals have large eyes for night hunting and remain alert for predators like sharks. They dive to depths of 30 to 165 feet, feeding primarily on fish and cephalopods near the shore. They hunt less during full moons, likely due to increased visibility to predators and prey moving deeper. Living in large colonies, female fur seals establish territories during the breeding season from mid-August to mid-November. Each mother gives birth to a single pup and stays with it for a week before leaving to feed, returning periodically to nurse. Mother and pup recognize each other by scent and sound, a crucial bond as mothers only nurse their own pups. Despite their similarities to sea lions, Galapagos fur seals have shorter, wider skulls and are generally smaller. Born with a black coat, they molt to reveal a lighter brown as they grow. Among otariids, Galapagos fur seals show the least sexual dimorphism.