Litter Size

How many babies does a Savi’s pipistrelle have at once? (litter size)

How many baby Savi’s pipistrelles are in a litter?

A Savi’s pipistrelle (Pipistrellus savii) usually gives birth to around 2 babies.With 1 litters per year, that sums up to a yearly offspring of 2 babies.

Upon birth, they weight 1 grams (0 lbs) and measure 2 cm (0′ 1″). They are a member of the Vespertilionidae family (genus: Pipistrellus). An adult Savi’s pipistrelle grows up to a size of 4.4 cm (0′ 2″).

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 Savi's pipistrelle is 2

Savi’s pipistrelle (Hypsugo savii sometimes classified as Pipistrellus savii) is a species of vesper bat found across North West Africa, the Mediterranean region and the Middle East. It feeds at night on flying insects. In the summer it roosts under bark, in holes in trees, in old buildings and in rock crevices but in winter it prefers roosts where the temperature is more even such as caves, underground vaults and deep rock cracks.

Other animals of the family Vespertilionidae

Savi’s pipistrelle is a member of the Vespertilionidae, as are these animals:

Animals that share a litter size with Savi’s pipistrelle

Those animals also give birth to 2 babies at once:

Animals with the same weight as a Savi’s pipistrelle

What other animals weight around 6 grams (0.01 lbs)?