What is the maximal age a Northern fur seal reaches?
An adult Northern fur seal (Callorhinus ursinus) usually gets as old as 35 years.
Northern fur seals are around 304 days in the womb of their mother. When born, they weight 5.35 kg (11.8 lbs) and measure 12.5 cm (0′ 5″). As a member of the Otariidae family (genus: Callorhinus), their offspring is 1 babies per pregnancy. Fully grown, they reach a bodylength of 1.74 meter (5′ 9″).
As a reference: Usually, humans get as old as 100 years, with the average being around 75 years. After being carried in the belly of their mother for 280 days (40 weeks), they grow to an average size of 1.65m (5′ 5″) and weight in at 62 kg (137 lbs), which is obviously highly individual.
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. A single fossil species, Callorhinus gilmorei, is known from the Pliocene of Japan and western North America.
Animals of the same family as a Northern fur seal
Not really brothers and sisters, but from the same biological family (Otariidae):
- South American fur seal becoming 21 years old
- Steller sea lion becoming 30 years old
- South American sea lion becoming 24.75 years old
- Arctocephalus forsteri becoming 15 years old
- New Zealand sea lion with 1 babies per pregnancy
- Guadalupe fur seal becoming 24 years old
- Juan Fernández fur seal with 1 babies per pregnancy
- Antarctic fur seal becoming 23 years old
- Brown fur seal becoming 21 years old
- California sea lion becoming 30 years old
Animals that reach the same age as Northern fur seal
With an average age of 35 years, Northern fur seal are in good companionship of the following animals:
- Grivet usually reaching 31.58 years
- White-bellied spider monkey usually reaching 28 years
- Water buffalo usually reaching 28.25 years
- Northern hairy-nosed wombat usually reaching 30 years
- King colobus usually reaching 30.5 years
- Western long-beaked echidna usually reaching 31 years
- Northern giraffe usually reaching 36.25 years
- Anoa usually reaching 36 years
- Onager usually reaching 38.75 years
- West Indian manatee usually reaching 30 years
Animals with the same number of babies Northern fur seal
The same number of babies at once (1) are born by:
- Atlantic bamboo rat
- Australian sea lion
- Eastern bettong
- Javan rusa
- Angolan epauletted fruit bat
- Allen’s swamp monkey
- Southern elephant seal
- Golden snub-nosed monkey
- Grant’s golden mole
- Sea otter
Weighting as much as Northern fur seal
A fully grown Northern fur seal reaches around 55.58 kg (122.54 lbs). So do these animals:
- Celebes warty pig weighting 53.46 kilos (117.86 lbs) on average
- Vicuña weighting 47.5 kilos (104.72 lbs) on average
- Burmeister’s porpoise weighting 60 kilos (132.28 lbs) on average
- Spotted hyena weighting 63.69 kilos (140.41 lbs) on average
- Alpaca weighting 64.9 kilos (143.08 lbs) on average
- Capybara weighting 47.5 kilos (104.72 lbs) on average
- Bharal weighting 52.16 kilos (114.99 lbs) on average
- Impala weighting 52.45 kilos (115.63 lbs) on average
- Chilean dolphin weighting 45 kilos (99.21 lbs) on average
- Bornean orangutan weighting 52.97 kilos (116.78 lbs) on average
Animals as big as a Northern fur seal
Those animals grow as big as a Northern fur seal:
- Banteng with 2.08 meter (6′ 10″)
- Dama gazelle with 1.46 meter (4′ 10″)
- Spectacled bear with 1.77 meter (5′ 10″)
- Brown fur seal with 1.91 meter (6′ 3″)
- Barasingha with 1.5 meter (5′ 0″)
- Sitatunga with 1.52 meter (5′ 0″)
- South American tapir with 2.01 meter (6′ 7″)
- Sloth bear with 1.6 meter (5′ 3″)
- Hirola with 1.6 meter (5′ 3″)
- Saola with 1.75 meter (5′ 9″)