13 Awesome Facts About Bats

Bats are an important species that affect our daily lives in ways we might not even realize. From pollinating our favorite fruits to eating pesky insects to inspiring medical marvelsbats are heroes of the night

Bat Week — held the last week in October — celebrates the role of bats in nature and all that these amazing creatures do for us. Check out some interesting bat facts below. 

1. There are over 1,400 species of bats worldwide. 

Bats can be found on nearly every part of the planetexcept in extreme deserts and polar regions. The difference in size and shape is equally impressive. Bats range in size from the Kitti’s hog-nosed bat (or bumblebee) batwhich is the world’s smallest mammalweighing less than a penny — to the flying foxwhich has a wingspan of up to 6 feet. The U.S. and Canada are home to 47 species of bats and additional species are found in the U.S. territories in the Pacific and Caribbean.

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The little brown bat lives up to its name. It weighs only a 1/4-1/3 of an ounceis about 2 inches longhas a 6-inch wingspan and you‘ll never guess what color it is. Photo by Ann FroschauerUSFWS.

2. Not all bats hibernate. 

Even though bears and bats are the two most well-known hibernatorsnot all bats spend their winter in caves. Some specieslike the spotted bat, survive by migrating to warmer areas in search of food when it gets chilly.   

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Migratory bat perched on a rock.
Mexican free-tailed bat. Photo by Ann FroschauerUSFWS.

3. Bats have few natural predators — disease is one of the biggest threats. 

Owlshawks and snakes eat batsbut that’s nothing compared to the millions of bats dying from white-nose syndrome. The disease — named for a white fungus on the muzzle and wings of bats — affects hibernating bats and has been detected in 40 states and nine Canadian provinces. This deadly syndrome has decimated certain species more than others. It has killed over 90% of northern long-earedlittle brown and tri-colored bat populations in fewer than 10 years. Scientists are developing and testing treatments to stop the disease from devastating bat populations. You can help by avoiding places where bats are hibernating. If you do go undergrounddecontaminate your clothingfootwear and gear so you won't spread this disease to other areas. 

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A tri-colored bat shows symptoms of white-nose syndrome. Photo by National Park Service.

4. Without batssay goodbye to bananasavocados and mangoes. 

Over 300 species of fruit depend on bats for pollination. Bats help spread seeds for nutsfigs and cacao — the main ingredient in chocolate. Without batswe also wouldn’t have plants like agave or the iconic saguaro cactus. 

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Just like a hummingbirdthe lesser long-nosed bat can hover at flowersusing its 3-inch-long tongue — equal to its body length — to feed on nectar in desert environments. Photo by Merlin D. TuttleBat Conservation International.

5. Night insects have the most to fear from bats. 

Each nightbats can eat their body weight in insectsnumbering in the thousands! This insect-heavy diet helps foresters and farmers protect their crops from pests.

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Many bats in flight.
Mexican free-tailed bats. Photo by Ann FroschauerUSFWS.

6. Bats are the only flying mammal. 

While the flying squirrel can only glide for short distances, bats are true fliers. A bat’s wing resembles a modified human hand — imagine the skin between your fingers largerthinner and stretched. This flexible skin membrane that extends between each long finger bone and many movable joints make bats agile fliers.

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California leaf-nosed bats exit a cave at Joshua Tree National Park. You can easily distinguish these bats by their leaf-like noses and large ears. Photo by Kristen LalumiereNational Park Service.

7. Bats may be smallbut they’re fast little creatures. 

How fast a bat flies depends on the speciesbut they can reach speeds over 100 miles per hour according to new research. 

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Mexican free-tailed bats emerge from Texas’s Bracken Cave. Over 15 million bats live theremaking it the largest known bat colony (and largest concentration of mammals) on Earth. Photo by Ann FroschauerUSFWS.

8. Conservation efforts can help bat species recover. 

Experts estimate that 52% of North American bat species are at risk of severe population declines in the next 15 years. Ten U.S. species are listed as endangeredwith one more listed as threatened. These amazing animals face a multitude of threats including habitat loss and diseasebut collaborativeinternational conservation efforts can make a difference. In the southwestern U.S. and Mexicocollaborations have helped one speciesthe lesser long-nosed batbecome the first bat species to recover and be removed from the Endangered Species list. In 1988there were thought to be fewer than 1,000 bats at the 14 known roosts range wide. As of 2018—thirty years later—there were an estimated 200,000 bats at 75 roosts!  

9. The longest-living bat is 41. 

It’s said that the smaller the animalthe shorter its lifespanbut bats break that rule of longevity. Although most bats live less than 20 years in the wildscientists have documented six species that live more than 30 years. In 2006a tiny bat from Siberia set the world record at 41 years.

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The Townsend's big-eared bat's average lifespan is 16 years. Photo by Ann FroschauerUSFWS.

10. Like catsbats clean themselves. 

Far from being dirtybats spend a lot of time grooming themselves. Some even groom each other. Besides having sleek furcleaning also helps control parasites.

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The spotted bat gets its name from its distinct appearance of black and white spotted fur. Another interesting fact about the spotted bat — it has the largest ears of any North American species. Photo by Paul CryanUSGS.

11. Dogs aren’t the only ones with pups. Baby bats are called pupsand a group of bats is a "colony."

Like other mammalsmother bats feed their pups breastmilknot insects. Most bats give birth to a single pup. There is at least one species that commonly has twins and that is the eastern red bat. Momma bats form nursery colonies in spring in cavesdead trees and rock crevices.

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Bats benefit from maintaining a close-knit roosting group because they increase reproductive successand it is important for rearing pups. Photo by Alan CresslerUSGS.

12. Bats are inspiring medical marvels. 

About 80 medicines come from plants that rely on bats for their survival. While bats are not blindstudying how bats use echolocation has helped scientists develop navigational aids for the blind. Research on bats has also led to advances in vaccines.

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The Mexican long-tongued bat is a vital pollinator in desert systems. They have a longbristle-like tongueallowing them to sip nectar from agave and cacti. Photo by USFWS.

13. Innies or Outies? Humans aren’t the only ones with belly buttons. 

With a few exceptionsnearly all mammals have navels because of mom’s umbilical cordand bats are no different. Now the real question is: Innies or outies? 

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Can you spot this Mariana Fruit bat’s belly button? Photo by Julia BolandUSFWS.

Bats need your help. You can help protect these amazing creatures by planting a bat garden or installing a bat house

Stay out of closed cavesespecially ones with bats. If you’re visiting an open cavemake sure to prevent the spread of white-nose syndrome by following these guidelines.

10/24/2024