Litter Size

How many babies does a Ribbon seal have at once? (litter size)

How many baby Ribbon seals are in a litter?

A Ribbon seal (Histriophoca fasciata) usually gives birth to around 1 babies.

Each of those little ones spend around 299 days as a fetus before they are released into the wild. Upon birth, they weight 10.25 kg (22.59 lbs) and measure 6 cm (0′ 3″). They are a member of the Phocidae family (genus: Histriophoca). An adult Ribbon seal grows up to a size of 1.53 meter (5′ 1″).

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 Ribbon seal is 1

The ribbon seal (Histriophoca fasciata) is a medium-sized pinniped from the true seal family (Phocidae). A seasonally ice-bound species, it is found in the Arctic and Subarctic regions of the North Pacific Ocean, notably in the Bering Sea and Sea of Okhotsk. It is distinguished by its striking coloration, with two wide white strips and two white circles against dark brown or black fur.It is the only living species in the genus Histriophoca, although a possible fossil species, H. alekseevi, has been described from the Miocene of Moldova.

Other animals of the family Phocidae

Ribbon seal is a member of the Phocidae, as are these animals:

Animals that share a litter size with Ribbon seal

Those animals also give birth to 1 babies at once:

Animals that get as old as a Ribbon seal

Other animals that usually reach the age of 31 years:

Animals with the same weight as a Ribbon seal

What other animals weight around 90 kg (198.42 lbs)?

Animals with the same size as a Ribbon seal

Also reaching around 1.53 meter (5′ 1″) in size do these animals: