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The northern fur seal (Callorhinus ursinus) is an eared seal found along the north Pacific Ocean, the Bering Sea, and the Sea of Okhotsk. It is the largest member of the fur seal subfamily ( Arctocephalinae ) and the only living species in the genus Callorhinus . [ 3 ]
Fur seals are any of nine species of pinnipeds belonging to the subfamily Arctocephalinae in the family Otariidae.They are much more closely related to sea lions than true seals, and share with them external ears (), relatively long and muscular foreflippers, and the ability to walk on all fours.
Newborn ribbon seal pups have white natal fur. After moulting their natal fur, their color changes to blue-grey on their backs and silvery beneath. Over the course of three years, portions of the fur become darker and others brighter after every molt, and only at the age of four years does the striped pattern emerge. [5]
Large male northern fur seal and harem of smaller females. A harem is an animal group consisting of one or two males, a number of females, and their offspring. The dominant male drives off other males and maintains the unity of the group. If present, the second male is subservient to the dominant male.
Sea lion group at haulout Harbor seals at haulout. Hauling out is a behaviour associated with pinnipeds (true seals, sea lions, fur seals and walruses) temporarily leaving the water. [1] [2] Hauling-out typically occurs between periods of foraging activity.
Adult Guadalupe fur seals are dark brown or dusty gray with yellowish silver manes, called guard hairs, on the back of the neck. [3] Guadalupe fur seals are sexually dimorphic in size, as males are much larger and heavier than females; males can grow to about seven feet in length and weigh upwards of 400 pounds, while females are typically only five feet long and weigh about 110 pounds. [4]
Guadalupe fur seal Arctocephalus townsendi (Merriam, 1897) Size: Habitat: Diet: LC Juan Fernández fur seal Arctocephalus philippii (Peters, 1866) Size: Habitat: Diet: LC Galápagos fur seal Arctocephalus galapagoensis (Heller, 1904) Galápagos Islands: Size: Male: 150–160 cm (59–63 in) long; 60–68 kg (132–150 lb)
These seals are covered mostly by brown or silver fur, with darker coloration around flippers. The color fades throughout the year, and recently molted seals appear darker than the silvery-white crabeater seals that are about to molt. Their body is comparatively more slender than other seals, and the snout is pointed.