https://www.marinebio.org/species/northern-fur-seals/callorhinus-ursinus On average, they have a lifespan of 12 to 30 years. Mothers protect their pups for … They have two coats of fur. Fur seals eat medium-sized fish, krill and squid. Fun Facts for Kids. This is known as the "jug-handle" position. The dark outer fur is very dark, while the undercoat is a peach color. To keep warm in cold water, they have a dense fur coat with almost 350,000 hairs per square inch. Southern fur seals also feed on penguins and sea birds. The pup is weaned at 4 months old and they reach sexual maturity at 3 - 6 years of age. Their fur … The best known examples of this carnivory are the leopard seal, Hydrurga leptonyx, … Northern fur seals are part of the family Otariidae, called the eared seals. Sometimes, sea lions also prey upon them. 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.They are marked by their dense underfur, which made them a long-time object of commercial hunting. In summer, they like to form colonies along rocky outcrops. Large sharks and orcas are known predators of adult and juvenile northern fur seals. FUR: With about 300,000 hairs per square inch, the fur of a northern fur seal is the second thickest in the animal kingdom; the sea otter has the thickest fur. Predators: Killer Whales (Orca) Reproduction: The majority of the northern fur seals breed on select islands off the Inky is the largest northern fur seal ever cared for at our hospital, but still weighed about half of what he should have as an adult male. Northern Fur Seals have a gestation period of 11 - 12 months, which includes a 4 month period of delayed implantation, and they give birth to a single pup. Orcas and sharks are the predators of fur seals. Predation by sea lions on northern fur seal neonates Predation by sea lions on northern fur seal neonates GENTRY, Roger L.; JOHNSON, James H. 1981-01-01 00:00:00 INTRODUCTION Pinnipeds mainly prey on fish or invertebrates, but a few species supplement their diet \vith other pinnipeds. They have a visible ear flap and are able to slightly "walk" on land using their hind flippers. One of them is the great white shark. A chemical that the NSW government has recently partially banned in firefighting has been found in the pups of endangered Australian sea lions and in Australian fur seals. However, others have plenty of large predators that they need to be worried about. In addition, Steller's sea lions have been observed to feed on seal pups. 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