How many baby Steller sea lions are in a litter?
A Steller sea lion (Eumetopias jubatus) usually gives birth to around 1 babies.
Each of those little ones spend around 342 days as a fetus before they are released into the wild. Upon birth, they weight 18.28 kg (40.29 lbs) and measure 10 cm (0′ 4″). They are a member of the Otariidae family (genus: Eumetopias). An adult Steller sea lion grows up to a size of 2.7 meter (8′ 11″).
To have a reference: Humans obviously usually have a litter size of one ;). Their babies are in the womb of their mother for 280 days (40 weeks) and reach an average size of 1.65m (5′ 5″). They weight in at 62 kg (137 lbs), which is obviously highly individual, and reach an average age of 75 years.
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.
Other animals of the family Otariidae
Steller sea lion is a member of the Otariidae, as are these animals:
- South American sea lion with 1 babies per pregnancy
- Galápagos fur seal with 1 babies per pregnancy
- Arctocephalus forsteri with 1 babies per pregnancy
- South American sea lion with 1 babies per pregnancy
- Subantarctic fur seal with 1 babies per pregnancy
- Northern fur seal with 1 babies per pregnancy
- Juan Fernández fur seal with 1 babies per pregnancy
- Australian sea lion with 1 babies per pregnancy
- New Zealand sea lion with 1 babies per pregnancy
- South American fur seal with 1 babies per pregnancy
Animals that share a litter size with Steller sea lion
Those animals also give birth to 1 babies at once:
- Dark-winged lesser house bat
- Himalayan tahr
- Painted bat
- Brazilian big-eyed bat
- Western long-tongued bat
- White-bellied spider monkey
- Mauritian tomb bat
- Steller’s sea cow
- Banana pipistrelle
- Bare-backed rousette
Animals that get as old as a Steller sea lion
Other animals that usually reach the age of 30 years:
- Ryukyu flying fox with 31 years
- Mantled howler with 25 years
- Tamaraw with 28 years
- Eurasian lynx with 26.75 years
- Daubenton’s bat with 28 years
- African buffalo with 29.5 years
- Geoffroy’s spider monkey with 27.25 years
- Blainville’s beaked whale with 27 years
- Gelada with 28 years
- Common eland with 24.33 years
Animals with the same weight as a Steller sea lion
What other animals weight around 383.23 kg (844.88 lbs)?
- Weddell seal usually reaching 400 kgs (881.85 lbs)
- African manatee usually reaching 454 kgs (1000.9 lbs)
- Malayan tapir usually reaching 309.61 kgs (682.57 lbs)
- Amazonian manatee usually reaching 418 kgs (921.53 lbs)
- Pygmy sperm whale usually reaching 431.25 kgs (950.74 lbs)
- Leopard seal usually reaching 352.84 kgs (777.88 lbs)
- Muskox usually reaching 312.67 kgs (689.32 lbs)
- Polar bear usually reaching 373.35 kgs (823.09 lbs)
- Horse usually reaching 401.8 kgs (885.82 lbs)
- Plains zebra usually reaching 400 kgs (881.85 lbs)
Animals with the same size as a Steller sea lion
Also reaching around 2.7 meter (8′ 11″) in size do these animals:
- Javan rhinoceros gets as big as 3.1 meter (10′ 3″)
- African buffalo gets as big as 2.53 meter (8′ 4″)
- Mountain nyala gets as big as 2.25 meter (7′ 5″)
- Tamaraw gets as big as 2.2 meter (7′ 3″)
- Baird’s tapir gets as big as 2.2 meter (7′ 3″)
- Sumatran rhinoceros gets as big as 2.77 meter (9′ 2″)
- American bison gets as big as 2.85 meter (9′ 5″)
- Onager gets as big as 2.25 meter (7′ 5″)
- Amazonian manatee gets as big as 2.75 meter (9′ 1″)
- Irrawaddy dolphin gets as big as 2.5 meter (8′ 3″)