Bats are mammals whose forelimbs form webbed wings, making
them the only mammals naturally capable of true and sustained what?
Bats do not flap their entire forelimbs, as birds do, but
instead flap their what?
A: Spread-out digits.
Bats are the second largest order of mammals after what?
A: The rodents.
Bats represent about 20% of all what?
A: Classified mammal species worldwide.
About what percentage of bat species are insectivores?
Most of the rest are what?
A: Frugivores, or fruit eaters.
A few species feed from animals other than
the vampire bats feeding on what?
A: Feeding on blood.
Bats are present throughout most of the world, performing
what vital ecological roles?
A: Pollinating flowers and dispersing fruit seeds.
Many tropical plant species depend entirely on bats for
A: The distribution of their seeds.
One way that bats are economically important is that as
they consume insect pests, they do what?
A: Reduce the need for pesticides.
What is the smallest bat?
A: The Kitti's hog-nosed bat, measuring 1.14–1.34 inches in length.
The largest species of bat are a few species of what?
A: Pteropus (fruit bats or flying foxes) and the giant golden-crowned flying
fox with a weight up to 4 pounds and a wingspan up to 5 feet 7 inches.
Megabats primarily eat what?
A: Fruit or nectar.
Fossilized remains of bats are few, as they are what?
A: Terrestrial and light-boned.
What has enabled bats to become one of the most widely
distributed groups of mammals?
Bats are found in almost every what?
A: Habitat available on Earth.
Different species select different habitats during
different seasons, ranging from seasides to what?
A: Mountains and even deserts.
Bat habitats have what two basic requirements?
A: Roosts, where they spend the day or hibernate, and places for foraging.
Most temperate species additionally need a what?
A: Relatively warm hibernation shelter.
Bat roosts can be found in hollows, crevices, foliage, and
A: Human-made structures.
The United States is home to an estimated how many species
A: 45 to 48.
What are the three most common species?
A: Myotis lucifugus (little brown bat), Eptesicus fuscus (big brown bat), and
Tadarida brasiliensis (Mexican free-tailed bat).
The little and the big brown bats are common throughout the
what part of the country?
A: The northern two-thirds of the country.
Mexican free-tailed bat is the most common species in the
A: Southwest, sometimes even appearing in portions of the Southeast.
The finger bones of bats are much more flexible than those
of other what?
A: Mammals, owing to their flattened cross-section and to low levels of minerals
near their tips.
The wings of bats are much thinner than those of what?
A: Birds, allowing bats to maneuver more quickly and more accurately than birds.
They are also delicate, and can what?
A: Rip easily.
The tissue of the bat's membrane is able to re-grow, such
that small tears can what?
A: Heal quickly.
Mammals have one-way valves in their veins to prevent the
blood from flowing backwards, but bats also have one-way valves in their what?
The tube-lipped nectar bat (Anoura fistulata) has what?
A: The longest tongue of any mammal relative to its body size.