Animal Weight

How much does a Little brown bat weight?

It is hard to guess what a Little brown bat weights. But we have the answer:

An adult Little brown bat (Myotis lucifugus) on average weights 7 grams (0.02 lbs).

The Little brown bat is from the family Vespertilionidae (genus: Myotis). It is usually born with about 2 grams (0 lbs). They can live for up to 34 years. When reaching adult age, they grow up to 5.2 cm (0′ 3″). On average, Little brown 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 average adult weight of a Little brown bat is 7 grams (0.02 lbs)

The little brown bat or little brown myotis (Myotis lucifugus) is a species of mouse-eared microbat found in North America. It has a small body size and glossy brown fur. It is similar in appearance to several other mouse-eared bats, including the Indiana bat, northern long-eared bat, and Arizona myotis, to which it is closely related. Despite its name, the little brown bat is not closely related to the big brown bat, which belongs to a different genus.Its mating system is polygynandrous, or promiscuous, and females give birth to one offspring annually. The offspring, called pups, are quickly weaned and reach adult size in some dimensions by three weeks old. The little brown bat has a mean lifespan of 6.5 years, though one individual in the wild reached 34 years old. It is nocturnal, foraging for its insect prey at night and roosting in hollow trees or buildings during the day, among less common roost types. It navigates and locates prey with echolocation.It has few natural predators, but may be killed by raptors such as owls, as well as terrestrial predators such as raccoons. Other sources of mortality include diseases such as rabies and white-nose syndrome. White-nose syndrome has been a significant cause of mortality since 2006, killing over one million little brown bats by 2011. In the Northeastern United States, population loss has been extreme, with surveyed hibernacula (caves used for hibernation) averaging a population loss of 90%.Humans frequently encounter the little brown bat due to its habit of roosting in buildings. Colonies in buildings are often considered pests because of the production of waste or the concern of rabies transmission. Little brown bats rarely test positive for rabies, however. Some people attempt to attract little brown bats to their property, but not their houses, by installing bat houses.

Animals of the same family as a Little brown bat

We found other animals of the Vespertilionidae family:

Animals with the same weight as a Little brown bat

As a comparison, here are some other animals that weight as much as the Myotis lucifugus:

Animals with the same size as a Little brown bat

Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Little brown bat:

Animals with the same litter size as a Little brown bat

Here is a list of animals that have the same number of babies per litter (1) as a Little brown bat:

Animals with the same life expectancy as a Little brown bat

Completely different animals, but becoming as old as a Little brown bat: