It is hard to guess what a Western mastiff bat weights. But we have the answer:
An adult Western mastiff bat (Eumops perotis) on average weights 50 grams (0.11 lbs).
The Western mastiff bat is from the family Molossidae (genus: Eumops). It is usually born with about 7 grams (0.02 lbs). When reaching adult age, they grow up to 13.92 meter (45′ 9″). On average, Western mastiff 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.
“Greater mastiff bat” redirects here. See Mops (bat) for the genus also known as “greater mastiff bats”.The western mastiff bat (Eumops perotis), also known as the western bonneted bat, the greater mastiff bat, or the greater bonneted bat, is a member of the free-tailed bat family, Molossidae. It is found in the Western United States, Mexico and South America, and is the largest bat native to North America. The subspecies Eumops perotis californicus is a species of concern as identified by the U.S. Fish and Wildlife Service. The range of this subspecies is principally southwest desert regions of the United States, along the border with Mexico; however, the range extends as far north on the Pacific coast to Alameda County, California.
Animals of the same family as a Western mastiff bat
We found other animals of the Molossidae family:
- Russet free-tailed bat with a weight of 16 grams
- Dwarf bonneted bat with a weight of 12 grams
- Roberts’s flat-headed bat with a weight of 14 grams
- Ozimops beccarii with a weight of 14 grams
- Black bonneted bat with a weight of 28 grams
- Dwarf dog-faced bat with a weight of 5 grams
- Egyptian free-tailed bat with a weight of 17 grams
- Midas free-tailed bat with a weight of 45 grams
- Peale’s free-tailed bat with a weight of 18 grams
- Roberts’s flat-headed bat with a weight of 14 grams
Animals with the same weight as a Western mastiff bat
As a comparison, here are some other animals that weight as much as the Eumops perotis:
- Greater bulldog bat bringing 45 grams to the scale
- Large Japanese field mouse bringing 43 grams to the scale
- Namaqua rock rat bringing 57 grams to the scale
- Yellow-pine chipmunk bringing 50 grams to the scale
- Red-nosed mouse bringing 46 grams to the scale
- Andean leaf-eared mouse bringing 53 grams to the scale
- Gray-bellied caenolestid bringing 40 grams to the scale
- Handleyomys fuscatus bringing 49 grams to the scale
- Handleyomys fuscatus bringing 49 grams to the scale
- Ernst Mayr’s water rat bringing 42 grams to the scale
Animals with the same litter size as a Western mastiff bat
Here is a list of animals that have the same number of babies per litter (1) as a Western mastiff bat: