It is hard to guess what a Northern bat weights. But we have the answer:
An adult Northern bat (Eptesicus nilssonii) on average weights 10 grams (0.02 lbs).
The Northern bat is from the family Vespertilionidae (genus: Eptesicus). It is usually born with about 4 grams (0.01 lbs). They can live for up to 15.5 years. When reaching adult age, they grow up to 8.2 cm (0′ 4″). On average, Northern bats can have babies 1 times per year with a litter size of 1.
As a reference: An average human weights in at 62 kg (137 lbs) and reaches an average size of 1.65m (5′ 5″). Humans spend 280 days (40 weeks) in the womb of their mother and reach around 75 years of age.
The northern bat (Eptesicus nilssonii) is the most abundant species of bat in northern Eurasia. It is found from England to HokkaidÅ and down to northern India. It is closely related to the serotine bat (Eptesicus serotinus).
Animals of the same family as a Northern bat
We found other animals of the Vespertilionidae family:
- Lesser large-footed bat with a weight of 8 grams
- Western bent-winged bat with a weight of 14 grams
- Gould’s wattled bat with a weight of 14 grams
- Hairy-legged myotis with a weight of 5 grams
- Little brown bat with a weight of 7 grams
- Nathusius’s pipistrelle with a weight of 7 grams
- Cave myotis with a weight of 9 grams
- Gould’s long-eared bat with a weight of 11 grams
- Black myotis with a weight of 2 grams
- Yellow serotine with a weight of 10 grams
Animals with the same weight as a Northern bat
As a comparison, here are some other animals that weight as much as the Eptesicus nilssonii:
- Small bent-winged bat bringing 8 grams to the scale
- Western harvest mouse bringing 10 grams to the scale
- Egyptian slit-faced bat bringing 9 grams to the scale
- Commissaris’s long-tongued bat bringing 9 grams to the scale
- Western broad-nosed bat bringing 11 grams to the scale
- Chestnut sac-winged bat bringing 9 grams to the scale
- Salt marsh harvest mouse bringing 10 grams to the scale
- Mindanao shrew bringing 10 grams to the scale
- Bicolored shrew bringing 10 grams to the scale
- Natal long-fingered bat bringing 10 grams to the scale
Animals with the same litter size as a Northern bat
Here is a list of animals that have the same number of babies per litter (1) as a Northern bat:
- Nubian ibex
- Dent’s mona monkey
- Black-striped wallaby
- Tibetan macaque
- Southern dog-faced bat
- Big-eared flying fox
- Sheep
- White-beaked dolphin
- Black-capped squirrel monkey
- Common wallaroo
Animals with the same life expectancy as a Northern bat
Completely different animals, but becoming as old as a Northern bat:
- Mexican free-tailed bat with an average maximal age of 15 years
- Red-fronted gazelle with an average maximal age of 13.5 years
- South American coati with an average maximal age of 17.67 years
- Suni with an average maximal age of 14 years
- Philippine tarsier with an average maximal age of 15 years
- European badger with an average maximal age of 16.17 years
- Australian sea lion with an average maximal age of 16 years
- Clouded leopard with an average maximal age of 17 years
- Lesser hedgehog tenrec with an average maximal age of 13 years
- Sugar glider with an average maximal age of 14 years