It is hard to guess what a Northern bat weights. But we have the answer:
An adult Northern bat (Eptesicus nilssoni) on average weights 10 grams (0.02 lbs).
The Northern bat is from the family Vespertilionidae (genus: Eptesicus). 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 Hokkaidō 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:
- Large forest bat with a weight of 6 grams
- Melck’s house bat with 1 babies per litter
- Serotine bat with a weight of 23 grams
- Large-footed bat with a weight of 10 grams
- Hutton’s tube-nosed bat with a weight of 7 grams
- Long-legged myotis with a weight of 8 grams
- Flores woolly bat with a weight of 6 grams
- Glen’s wattled bat with a weight of 10 grams
- New Guinea long-eared bat with a weight of 7 grams
- Variegated butterfly bat with a weight of 11 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 nilssoni:
- Short-tailed shrew tenrec bringing 9 grams to the scale
- Cantor’s roundleaf bat bringing 10 grams to the scale
- Glen’s wattled bat bringing 10 grams to the scale
- Bicolored shrew bringing 10 grams to the scale
- Common bent-wing bat bringing 11 grams to the scale
- Spurrell’s free-tailed bat bringing 8 grams to the scale
- Micronomus bringing 8 grams to the scale
- Gervais’s fruit-eating bat bringing 12 grams to the scale
- Orinoco sword-nosed bat bringing 9 grams to the scale
- Bicolored roundleaf bat bringing 8 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:
- Giant golden-crowned flying fox
- Striped possum
- Llama
- Nilgiri tahr
- Bare-eared squirrel monkey
- Père David’s vole
- Red-tailed monkey
- Brown fur seal
- African bush elephant
- Ribbon seal
Animals with the same life expectancy as a Northern bat
Completely different animals, but becoming as old as a Northern bat:
- Himalayan goral with an average maximal age of 17.58 years
- Common pipistrelle with an average maximal age of 16.67 years
- White-nosed saki with an average maximal age of 17 years
- Wolverine with an average maximal age of 18 years
- Thorold’s deer with an average maximal age of 18 years
- Snow leopard with an average maximal age of 18 years
- Tayra with an average maximal age of 18 years
- Oribi with an average maximal age of 15.75 years
- Cape grysbok with an average maximal age of 14 years
- Bay duiker with an average maximal age of 17 years