It is hard to guess what a Grey long-eared bat weights. But we have the answer:
An adult Grey long-eared bat (Plecotus austriacus) on average weights 6 grams (0.01 lbs).
The Grey long-eared bat is from the family Vespertilionidae (genus: Plecotus). They can live for up to 15 years. When reaching adult age, they grow up to 4.1 cm (0′ 2″).
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 grey long-eared bat (Plecotus austriacus) is a fairly large European bat. It has distinctive ears, long and with a distinctive fold. It hunts above woodland, often by day, and mostly for moths. In captivity, it has also been recorded to eat small lizards. It is extremely similar to the more common brown long-eared bat, and was only distinguished in the 1960s, but has a paler belly.
Animals of the same family as a Grey long-eared bat
We found other animals of the Vespertilionidae family:
- Greater mouse-eared bat with a weight of 25 grams
- California myotis with a weight of 4 grams
- Southeast Asian long-fingered bat with a weight of 6 grams
- Black-winged little yellow bat with a weight of 4 grams
- Large myotis with a weight of 42 grams
- Lesser noctule with a weight of 12 grams
- Hoary bat with a weight of 27 grams
- Van Gelder’s bat with a weight of 22 grams
- Somali serotine with a weight of 4 grams
- Thick-eared bat with a weight of 8 grams
Animals with the same weight as a Grey long-eared bat
As a comparison, here are some other animals that weight as much as the Plecotus austriacus:
- Lesser dwarf shrew bringing 5 grams to the scale
- Wollaston’s roundleaf bat bringing 6 grams to the scale
- Southern forest bat bringing 5 grams to the scale
- Dent’s horseshoe bat bringing 6 grams to the scale
- Silver-tipped myotis bringing 5 grams to the scale
- Eurasian harvest mouse bringing 7 grams to the scale
- Savi’s pipistrelle bringing 6 grams to the scale
- Ornate shrew bringing 5 grams to the scale
- Argentine brown bat bringing 7 grams to the scale
- Golden-tipped bat bringing 6 grams to the scale
Animals with the same size as a Grey long-eared bat
Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Grey long-eared bat:
- Wagner’s mustached bat with a size of 4.5 cm (0′ 2″)
- Pacific sheath-tailed bat with a size of 4.7 cm (0′ 2″)
- Rufous trident bat with a size of 4.4 cm (0′ 2″)
- White-winged serotine with a size of 3.7 cm (0′ 2″)
- Indiana bat with a size of 4.7 cm (0′ 2″)
- Proboscis bat with a size of 4.2 cm (0′ 2″)
- Ornate shrew with a size of 4.9 cm (0′ 2″)
- Pallas’s long-tongued bat with a size of 4.8 cm (0′ 2″)
- Lesser horseshoe bat with a size of 3.8 cm (0′ 2″)
- Mexican free-tailed bat with a size of 4.1 cm (0′ 2″)
Animals with the same life expectancy as a Grey long-eared bat
Completely different animals, but becoming as old as a Grey long-eared bat:
- Grant’s gazelle with an average maximal age of 12.67 years
- Long-tailed goral with an average maximal age of 13.17 years
- Nine-banded armadillo with an average maximal age of 15 years
- Spectral tarsier with an average maximal age of 12 years
- Guinea pig with an average maximal age of 14.75 years
- Black-backed jackal with an average maximal age of 14 years
- American red squirrel with an average maximal age of 12 years
- Fulvus roundleaf bat with an average maximal age of 12 years
- Soemmerring’s gazelle with an average maximal age of 15.5 years
- Weasel sportive lemur with an average maximal age of 12 years