It is hard to guess what a Steller sea lion weights. But we have the answer:
An adult Steller sea lion (Eumetopias jubatus) on average weights 383.23 kg (844.88 lbs).
The Steller sea lion is from the family Otariidae (genus: Eumetopias). It is usually born with about 18.28 kg (40.29 lbs). They can live for up to 30 years. When reaching adult age, they grow up to 2.7 meter (8′ 11″). Usually, Steller sea lions have 1 babies per litter.
As a reference: An average human weights in at 62 kg (137 lbs) and reaches an average size of 1.65m (5′ 5″). Humans spend 280 days (40 weeks) in the womb of their mother and reach around 75 years of age.
The Steller sea lion (Eumetopias jubatus), also known as the Steller’s sea lion and “northern sea lion”, is a near-threatened species of sea lion in the northern Pacific. It is the sole member of the genus Eumetopias and the largest of the eared seals (Otariidae). Among pinnipeds, it is inferior in size only to the walrus and the two species of elephant seals. The species is named for the naturalist Georg Wilhelm Steller, who first described them in 1741. The Steller sea lion has attracted considerable attention in recent decades, owing to significant and largely unexplained declines in their numbers over an extensive portion of their northern range in Alaska.
Animals of the same family as a Steller sea lion
We found other animals of the Otariidae family:
- Subantarctic fur seal bringing 92.21 kilos (203.29 lbs) to the scale
- Arctocephalus forsteri bringing 101.13 kilos (222.95 lbs) to the scale
- Antarctic fur seal bringing 96.6 kilos (212.97 lbs) to the scale
- South American sea lion bringing 193.67 kilos (426.97 lbs) to the scale
- Galápagos fur seal bringing 39.47 kilos (87.02 lbs) to the scale
- Brown fur seal bringing 178.75 kilos (394.08 lbs) to the scale
- Northern fur seal bringing 55.58 kilos (122.53 lbs) to the scale
- California sea lion bringing 137.6 kilos (303.36 lbs) to the scale
- South American sea lion bringing 194 kilos (427.7 lbs) to the scale
- New Zealand sea lion bringing 273.67 kilos (603.34 lbs) to the scale
Animals with the same weight as a Steller sea lion
As a comparison, here are some other animals that weight as much as the Eumetopias jubatus:
- Polar bear with a weight of 373.35 kilos (823.09 lbs)
- African manatee with a weight of 454 kilos (1000.9 lbs)
- Grévy’s zebra with a weight of 405.5 kilos (893.97 lbs)
- Risso’s dolphin with a weight of 387.25 kilos (853.74 lbs)
- Plains zebra with a weight of 400 kilos (881.85 lbs)
- Amazonian manatee with a weight of 418 kilos (921.53 lbs)
- Horse with a weight of 401.8 kilos (885.82 lbs)
- Pygmy sperm whale with a weight of 431.25 kilos (950.74 lbs)
- Weddell seal with a weight of 400 kilos (881.85 lbs)
- Leopard seal with a weight of 352.84 kilos (777.88 lbs)
Animals with the same size as a Steller sea lion
Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Steller sea lion:
- Mountain zebra with a size of 2.35 meter (7′ 9″)
- Bearded seal with a size of 2.3 meter (7′ 7″)
- Baird’s tapir with a size of 2.2 meter (7′ 3″)
- Hawaiian monk seal with a size of 2.24 meter (7′ 5″)
- Moose with a size of 2.83 meter (9′ 4″)
- Weddell seal with a size of 2.55 meter (8′ 5″)
- White-beaked dolphin with a size of 3.05 meter (10′ 1″)
- Black rhinoceros with a size of 2.85 meter (9′ 5″)
- Tamaraw with a size of 2.2 meter (7′ 3″)
- Mountain nyala with a size of 2.25 meter (7′ 5″)
Animals with the same litter size as a Steller sea lion
Here is a list of animals that have the same number of babies per litter (1) as a Steller sea lion:
- Frosted sac-winged bat
- Rough-haired golden mole
- Atlantic white-sided dolphin
- Arabian tahr
- Thomson’s gazelle
- Malayan civet
- Typical vlei rat
- Barasingha
- Scimitar oryx
- Bulmer’s fruit bat
Animals with the same life expectancy as a Steller sea lion
Completely different animals, but becoming as old as a Steller sea lion:
- Sika deer with an average maximal age of 25.42 years
- Bharal with an average maximal age of 24 years
- Rodrigues flying fox with an average maximal age of 30 years
- Hawaiian monk seal with an average maximal age of 30 years
- Mantled howler with an average maximal age of 25 years
- Honey badger with an average maximal age of 26.5 years
- Ribbon seal with an average maximal age of 31 years
- Crested mona monkey with an average maximal age of 24.08 years
- Linnaeus’s two-toed sloth with an average maximal age of 27.75 years
- African buffalo with an average maximal age of 29.5 years