How many baby Eastern long-eared bats are in a litter?
A Eastern long-eared bat (Nyctophilus bifax) usually gives birth to around 2 babies.
Upon birth, they weight 3 grams (0.01 lbs) and measure 2.9 cm (0′ 2″). They are a member of the Vespertilionidae family (genus: Nyctophilus). An adult Eastern long-eared bat grows up to a size of 54.5 cm (1′ 10″).
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 eastern long-eared bat, species Nyctophilus bifax, is a small flying mammal, a vespertilionid bat. It is found in eastern Australia and Papua New Guinea.
Other animals of the family Vespertilionidae
Eastern long-eared bat is a member of the Vespertilionidae, as are these animals:
- Yellow-lipped bat weighting only 4 grams
- Daubenton’s bat with 1 babies per pregnancy
- Myotis bocagei weighting only 7 grams
- Whiskered bat with 1 babies per pregnancy
- Yellowish myotis weighting only 5 grams
- Flute-nosed bat weighting only 4 grams
- Light-winged lesser house bat weighting only 4 grams
- Golden-tipped bat weighting only 6 grams
- Southern yellow bat with 2 babies per pregnancy
- Greater Asiatic yellow bat with 1 babies per pregnancy
Animals that share a litter size with Eastern long-eared bat
Those animals also give birth to 2 babies at once:
- Desmarest’s hutia
- Banded linsang
- Fresno kangaroo rat
- Big Mexican small-eared shrew
- Javanese flying squirrel
- Baluchistan pygmy jerboa
- Bastard big-footed mouse
- Rusty-spotted cat
- Chestnut tree mouse
- African civet
Animals with the same weight as a Eastern long-eared bat
What other animals weight around 9 grams (0.02 lbs)?
- Fringed myotis weighting 8 grams
- Northern birch mouse weighting 8 grams
- Burmese whiskered bat weighting 8 grams
- Pygmy round-eared bat weighting 9 grams
- Antillean ghost-faced bat weighting 8 grams
- Orinoco sword-nosed bat weighting 9 grams
- Geata mouse shrew weighting 9 grams
- Bechstein’s bat weighting 9 grams
- Savanna shrew weighting 10 grams
- Northern groove-toothed shrew mouse weighting 10 grams