It is hard to guess what a Allen’s big-eared bat weights. But we have the answer:
An adult Allen’s big-eared bat (Idionycteris phyllotis) on average weights 12 grams (0.03 lbs).
The Allen’s big-eared bat is from the family Vespertilionidae (genus: Idionycteris). They can live for up to 3.17 years. When reaching adult age, they grow up to 5.9 cm (0′ 3″). Normally, Allen’s big-eared bats can have babies 1 times a year.
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.
Allen’s big-eared bat (Idionycteris phyllotis) is a species of vesper bat in the monotypic genus Idionycteris. It occurs in Mexico and in Arizona, California, Nevada, New Mexico, Utah, and Colorado in the United States.
Animals of the same family as a Allen’s big-eared bat
We found other animals of the Vespertilionidae family:
- Little broad-nosed bat with a weight of 10 grams
- Surat serotine with a weight of 13 grams
- De Winton’s long-eared bat with a weight of 6 grams
- Common thick-thumbed bat with a weight of 4 grams
- Allen’s spotted bat with a weight of 5 grams
- Large forest bat with a weight of 6 grams
- Lesser large-footed bat with a weight of 8 grams
- Big brown bat with a weight of 17 grams
- Papillose woolly bat with a weight of 10 grams
- Myotis bocagei with a weight of 7 grams
Animals with the same weight as a Allen’s big-eared bat
As a comparison, here are some other animals that weight as much as the Idionycteris phyllotis:
- Plains harvest mouse bringing 10 grams to the scale
- Moonshine shrew bringing 13 grams to the scale
- Mindanao shrew bringing 10 grams to the scale
- Bicolored shrew bringing 10 grams to the scale
- Piebald shrew bringing 11 grams to the scale
- Northern bat bringing 10 grams to the scale
- Papillose woolly bat bringing 10 grams to the scale
- Microryzomys minutus bringing 13 grams to the scale
- Black-gilded pipistrelle bringing 10 grams to the scale
- Glacier Bay water shrew bringing 14 grams to the scale
Animals with the same size as a Allen’s big-eared bat
Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Allen’s big-eared bat:
- Fringed myotis with a size of 5.2 cm (0′ 3″)
- Merriam’s shrew with a size of 6 cm (0′ 3″)
- Oligoryzomys nigripes with a size of 6.1 cm (0′ 3″)
- Trident bat with a size of 5.6 cm (0′ 3″)
- Townsend’s big-eared bat with a size of 5.7 cm (0′ 3″)
- Taiwanese brown-toothed shrew with a size of 6.7 cm (0′ 3″)
- Lesser striped shrew with a size of 6.8 cm (0′ 3″)
- Asiatic short-tailed shrew with a size of 6.7 cm (0′ 3″)
- Tailed tailless bat with a size of 5.8 cm (0′ 3″)
- Johnston’s forest shrew with a size of 5.3 cm (0′ 3″)
Animals with the same life expectancy as a Allen’s big-eared bat
Completely different animals, but becoming as old as a Allen’s big-eared bat:
- Narrow-nosed planigale with an average maximal age of 3 years
- Greater white-toothed shrew with an average maximal age of 3.17 years
- Lesser bamboo rat with an average maximal age of 3.67 years
- Water opossum with an average maximal age of 3 years
- Raffray’s bandicoot with an average maximal age of 3.25 years
- Little red kaluta with an average maximal age of 3 years
- Northern brown bandicoot with an average maximal age of 3 years
- Black myotis with an average maximal age of 3.5 years
- Small Japanese mole with an average maximal age of 3.5 years
- Woodland vole with an average maximal age of 2.75 years