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Litter Size

How many babies does a Sea otter have at once? (litter size)

How many baby Sea otters are in a litter?

A Sea otter (Enhydra lutris) usually gives birth to around 1 babies.

Each of those little ones spend around 238 days as a fetus before they are released into the wild. Upon birth, they weight 1.89 kg (4.17 lbs) and measure 62.1 cm (2′ 1″). They are a member of the Mustelidae family (genus: Enhydra). An adult Sea otter grows up to a size of 1.44 meter (4′ 9″).

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 average litter size of a Sea otter is 1

The sea otter (Enhydra lutris) is a marine mammal native to the coasts of the northern and eastern North Pacific Ocean. Adult sea otters typically weigh between 14 and 45 kg (31 and 99 lb), making them the heaviest members of the weasel family, but among the smallest marine mammals. Unlike most marine mammals, the sea otter’s primary form of insulation is an exceptionally thick coat of fur, the densest in the animal kingdom. Although it can walk on land, the sea otter is capable of living exclusively in the ocean.The sea otter inhabits nearshore environments, where it dives to the sea floor to forage. It preys mostly on marine invertebrates such as sea urchins, various molluscs and crustaceans, and some species of fish. Its foraging and eating habits are noteworthy in several respects. First, its use of rocks to dislodge prey and to open shells makes it one of the few mammal species to use tools. In most of its range, it is a keystone species, controlling sea urchin populations which would otherwise inflict extensive damage to kelp forest ecosystems. Its diet includes prey species that are also valued by humans as food, leading to conflicts between sea otters and fisheries.Sea otters, whose numbers were once estimated at 150,000–300,000, were hunted extensively for their fur between 1741 and 1911, and the world population fell to 1,000–2,000 individuals living in a fraction of their historic range. A subsequent international ban on hunting, sea otter conservation efforts, and reintroduction programs into previously populated areas have contributed to numbers rebounding, and the species occupies about two-thirds of its former range. The recovery of the sea otter is considered an important success in marine conservation, although populations in the Aleutian Islands and California have recently declined or have plateaued at depressed levels. For these reasons, the sea otter remains classified as an endangered species.

Other animals of the family Mustelidae

Sea otter is a member of the Mustelidae, as are these animals:

Animals that share a litter size with Sea otter

Those animals also give birth to 1 babies at once:

Animals that get as old as a Sea otter

Other animals that usually reach the age of 30 years:

Animals with the same weight as a Sea otter

What other animals weight around 27.46 kg (60.53 lbs)?

Animals with the same size as a Sea otter

Also reaching around 1.44 meter (4′ 9″) in size do these animals: