Facts About Bats
Published September 29, 2026 · FactsSeeker
Bats are mammals with adaptations that make them far more varied than their familiar nighttime silhouette suggests. The supplied San Diego Zoo source describes a group that includes fruit eaters, nectar feeders, insect hunters, and a few blood-feeding species, as well as animals that pollinate plants, disperse seeds, and use highly specialized wings and senses.
Bats belong to a large mammal order
Bats are mammals in the order Chiroptera. The source lists the group with 19 families, 187 genera, and 951 species, so bats should be understood as a diverse order rather than a single kind of animal with one lifestyle. [1]
Their order name refers to hand wings
Chiroptera means “hand wing,” a name that matches bat anatomy. A bat wing contains the same bones as a four-fingered human hand, with a thin but strong skin membrane spread across those bones and connected to the body. [1]
Bats are the only mammals described as true fliers
The source identifies bats as the only mammals capable of true flight. It also notes that many bats take off by dropping from a hanging position, and that many cannot take off from the ground. [1]
Bat wings can sense moving air
The surface of a bat wing is not just a passive sheet of skin. It has sensitive bumps called Merkel cells, each with a tiny hair, which help the bat gather information about airflow and adjust the wing’s shape for more efficient flight. [1]
Bats are grouped as mega bats and micro bats
The San Diego Zoo source separates bats into two major groups. Mega bats are generally medium to large and many eat fruit, pollen, or nectar, while micro bats are smaller and mostly eat insects, using echolocation to navigate and locate prey. [1]
Only a small share of bats feed on blood
The vampire-bat image applies to very few bat species. Out of nearly 1,000 bat species, the source says only 3 feed on blood, and it says that blood is usually from cattle. [1]
Bats live widely, but not in every environment
Bats can occur in many parts of the world, but the source excludes polar regions and extreme deserts. Their resting sites are varied too, ranging from caves, trees, and bridges to burrows, termite nests, flowers, and even giant spiderwebs depending on the species. [1]
Many bats rest upside down
Bats roost upside down because their lightweight hind-leg bones do not support their body weight well in an upright position. While resting, their wings can wrap around the body like a cloak. [1]
Winter behavior differs among species
Some bats migrate to warmer climates in winter, while others hibernate. The source gives one example of a bat that travels 2,400 miles (3,900 kilometers) each year, but it also says researchers do not yet know how bats navigate those long distances back to the same cave. [1]
Micro bats use echoes to find insect prey
Micro bats locate insect meals by sending out short, high-pitched sounds and listening to the echoes that return from objects. By interpreting those echoes while flying, they can distinguish among objects such as a tree, a person’s head, and a grasshopper. [1]
Bats are not blind
The source directly says bats are not blind, although many have better night vision than day vision. Fruit bats are described differently from many micro bats: because fruit does not fly, they lack complex echolocation and rely on strong eyesight and smell to find food. [1]
Insects are a major bat food
About 70 percent of bats eat insects such as flies, mosquitoes, beetles, and cockroaches. The source also gives a Texas example in which a bat colony eats 500,000 pounds (226,796 kilograms) of mosquitoes nightly. [1]
Nectar-feeding bats can pollinate plants
Bats that feed on nectar have long snouts and tongues that let them lap nectar while hovering. As they feed, pollen catches on their hair and is carried from flower to flower, making these bats important pollinators for many plants. [1]
Fruit bats help move seeds
Fruit-eating bats are drawn by the smell of ripe fruit, but the source says they do not eat the whole fruit. They drink the juice and spit out pulp and seeds, a behavior linked in the source to rainforest regeneration. [1]
Mother bats can identify their pups
A mother bat gives birth while hanging by her feet and must catch the dropping pup with her wings. Most female bats have only one pup per year, and the source says a mother can locate her pup by scent and sound even among millions in a roost. [1]
Young bats develop on species-specific schedules
A bat pup is born hairless and with closed eyes. The mother nurses it for two to six months, and a pup learns to fly within three to six weeks of birth, depending on the species. [1]
Bats provide several ecological services
The source describes bats as pollinators of trees, flowers, and cacti, and as seed spreaders that help plants grow in new areas. It also says insect-eating bats may live together by the millions and that each can eat half its weight in insects in a night. [1]
Some bat populations face serious threats
The San Diego Zoo source says many bat populations are in grave danger. It specifically describes bats across the eastern US and Canada as losing habitat to human activities and as affected by the fungal infection called white-nose syndrome. [1]
Sources & further reading
Bat traits vary by species, so diet, size, reproduction, movement, senses, and conservation status should not be assumed to be the same for every bat.
Sources checked 2026-09-28. Our approach to facts · Suggest a correction