Categories
Litter Size

How many babies does a Serotine bat have at once? (litter size)

How many baby Serotine bats are in a litter?

A Serotine bat (Eptesicus serotinus) usually gives birth to around 1 babies.With 1 litters per year, that sums up to a yearly offspring of 1 babies.

Each of those little ones spend around 65 days as a fetus before they are released into the wild. Upon birth, they weight 5 grams (0.01 lbs) and measure 3.1 cm (0′ 2″). They are a member of the Vespertilionidae family (genus: Eptesicus). An adult Serotine bat grows up to a size of 6.8 cm (0′ 3″).

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 Serotine bat is 1

The serotine bat (Eptesicus serotinus), also known as the common serotine bat, big brown bat, or silky bat, is a fairly large Eurasian bat with quite large ears. It has a wingspan of around 37 cm (15 in) and often hunts in woodland. It sometimes roosts in buildings, hanging upside down, in small groups or individually. The name serotine is derived from the Latin serotinus which means “evening”, while the generic name derives from the Greek ἔπιεν and οίκος which means “house flyer”.

Other animals of the family Vespertilionidae

Serotine bat is a member of the Vespertilionidae, as are these animals:

Animals that share a litter size with Serotine bat

Those animals also give birth to 1 babies at once:

Animals that get as old as a Serotine bat

Other animals that usually reach the age of 6 years:

Animals with the same weight as a Serotine bat

What other animals weight around 23 grams (0.05 lbs)?

Animals with the same size as a Serotine bat

Also reaching around 6.8 cm (0′ 3″) in size do these animals: