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The microbats constitute the suborder Microchiroptera within the order Chiroptera (bat
Bat

Bats are mammals in the order Chiroptera. The forelimbs of all bats are developed as wings, making them the only mammals naturally capable of sustained flight ....
s). They are most often referred to by their scientific name. Other English
English language

English is a West Germanic language that originated in Anglo-Saxon England and has lingua franca status in many parts of the world as a result of the military, economic, scientific, political and cultural influence of the British Empire in the 18th, 19th and early 20th centuries and that of the United States from the mid 20th century onwa...
 names are "insectivorous bats", "echolocating bats", "small bats" or "true bats". All these names are somewhat inaccurate, because not all microbats feed on insect
Insect

Insects are the biggest class of arthropods and the only ones with wings. They are the most diverse group of animals on the planet. They are most diverse at the equator and their diversity declines toward the poles....
s, and some of them are larger than small megabat
Megabat

Megabats is the term used informally to refer to bats of the family Pteropodidae. They are also referred to as fruit bats, old world fruit bats, or flying foxes....
s.

The distinctions between microbats and megabats are:



Most microbats feed on insects.






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The microbats constitute the suborder Microchiroptera within the order Chiroptera (bat
Bat

Bats are mammals in the order Chiroptera. The forelimbs of all bats are developed as wings, making them the only mammals naturally capable of sustained flight ....
s). They are most often referred to by their scientific name. Other English
English language

English is a West Germanic language that originated in Anglo-Saxon England and has lingua franca status in many parts of the world as a result of the military, economic, scientific, political and cultural influence of the British Empire in the 18th, 19th and early 20th centuries and that of the United States from the mid 20th century onwa...
 names are "insectivorous bats", "echolocating bats", "small bats" or "true bats". All these names are somewhat inaccurate, because not all microbats feed on insect
Insect

Insects are the biggest class of arthropods and the only ones with wings. They are the most diverse group of animals on the planet. They are most diverse at the equator and their diversity declines toward the poles....
s, and some of them are larger than small megabat
Megabat

Megabats is the term used informally to refer to bats of the family Pteropodidae. They are also referred to as fruit bats, old world fruit bats, or flying foxes....
s.

The distinctions between microbats and megabats are:

  • Microbats use echolocation
    Animal echolocation

    Echolocation, also called biosonar, is the biological sonar used by several animals such as dolphins, shrews, most bats, and most whales....
    , whereas megabats do not typically (The Egyptian fruit bat Rousettus egyptiacus is an exception).
  • Microbats lack the claw at the second toe of the forelimb.
  • The ears of microbats don't form a closed ring, but the edges are separated from each other at the base of the ear.
  • Microbats lack the underfur; they have only guard hair
    Guard hair

    Guard hairs are the longest, most coarse hairs in a mammal's coat, forming the topcoat . They taper to a point and protect the undercoat from the elements....
    s or are naked.


Most microbats feed on insects. Some of the larger species hunt bird
Bird

Birds are wing, Bipedalismal, endothermic , vertebrate animals that lay egg . There are around 10,000 living species, making them the most numerous tetrapod vertebrates....
s, lizard
Lizard

Lizards are a large and widespread group of squamate reptiles, with nearly 5,000 species, ranging across all continents except Antarctica as well as most oceanic island chains....
s, frog
Frog

Frogs are amphibians in the order Anura , formerly referred to as Salientia . The name frog derives from Old English language frogga, , cognate with Sanskrit plava , probably deriving from Proto-Indo-European language praw = "to jump"....
s or even fish
Fish

A fish is any marine biology vertebrate animal that is typically ectothermic , covered with scale , and equipped with two sets of paired fins and several unpaired fins....
. Microbats that feed on the blood of large mammals (vampire bat
Vampire bat

Vampire bats are bats whose food source is blood, a dietary trait called hematophagy. There are three bat species that feed solely on blood: the Common vampire bat , the Hairy-legged Vampire Bat , and the White-winged Vampire Bat ....
s) exist in the Americas south of the United States. Microbats are 4 to 16 cm long. Many species have chitinase enzymes in their intestines that are produced by symbiotic bacteria. These help in digesting the insect prey.

Echolocation


Bats are one of the most famous examples for echolocation
Animal echolocation

Echolocation, also called biosonar, is the biological sonar used by several animals such as dolphins, shrews, most bats, and most whales....
 among animals. All microbats use echolocation. The only megabat
Megabat

Megabats is the term used informally to refer to bats of the family Pteropodidae. They are also referred to as fruit bats, old world fruit bats, or flying foxes....
 which is known to echolocate is the genus Rousettus
Rousettus

Rousettus is a genus of Old World fruit bats. They are sometimes referred to as dog-faced fruit bats, or flying foxes. The genus is a member of the suborder Megachiroptera....
, which uses a different method of echolocation than that used by microbats. The echolocation system of bats is often called biosonar.

Microbats generate ultrasound
Ultrasound

Ultrasound is cyclic sound pressure with a frequency greater than the upper limit of human hearing . Although this limit varies from person to person, it is approximately 20 Hertz in healthy, young adults and thus, 20 kHz serves as a useful lower limit in describing ultrasound....
 via the larynx
Larynx

The larynx , colloquially known as the voicebox, is an organ in the neck of mammals involved in protection of the vertebrate trachea and sound production....
 and emit the sound through the nose or the open mouth. Microbat range in frequency from 14,000 to over 100,000 hertz
Hertz

The hertz is a measure of frequency per unit of time, or the number of list of cycles per second. It is the SI base unit of frequency in the International System of Units , and is used worldwide in both general-purpose and scientific contexts....
, well beyond the range of the human ear
Ear

The ear is the sense organ that detects sounds. The vertebrate ear shows a common biology from fish to humans, with variations in structure according to order and species....
 (typical human hearing range is considered to be from 20Hz to 20,000 Hz). The emitted vocalizations form a broad beam of sound that is used to probe the environment. See the main article on animal echolocation
Animal echolocation

Echolocation, also called biosonar, is the biological sonar used by several animals such as dolphins, shrews, most bats, and most whales....
 for details.

Some moth
Moth

A moth is an insect closely related to the butterfly, both being of the Order Lepidoptera. The differences between butterflies and moths are more than just taxonomy....
s have developed a protection against bats. They are able to hear the bat's ultrasounds and flee as soon as they notice these sounds, or stop beating their wings for a period of time to deprive the bat of the characteristic echo signature of moving wings which it may home in on. To counteract this, the bat may cease producing the ultrasound bursts as it nears its prey, and can thus avoid detection.

Classification

This is the classification according to Simmons and Geisler (1998):

Superfamily Emballonuroidea
  • Family Emballonuridae (sac-winged bat
    Sac-winged bat

    The 47 species of sac-winged or sheathtailed bats constitute the family Emballonuridae, and can be found in tropical and sub-tropical regions all over the world....
    s or sheath-tailed bats)
Superfamily Rhinopomatoidea
  • Family Rhinopomatidae
    Rhinopomatidae

    Mouse-tailed bats are a group of insectivore bats of the family Rhinopomatidae with only three species, all contained in the single genus Rhinopoma....
     (mouse-tailed bats)
  • Family Craseonycteridae (Bumblebee Bat
    Bumblebee Bat

    Kitti's Hog-nosed Bat , also known as the bumblebee bat, is a vulnerable species of bat and the only member of the family Craseonycteridae....
     or Kitti's Hog-nosed Bat)
Superfamily Rhinolophoidea
  • Family Rhinolophidae (horseshoe bat
    Horseshoe bat

    Horseshoe bats are a large family of bats including approximately 130 species grouped in 10 genera. They either belong to the suborder Microchiroptera or the Yinpterochiroptera....
    s)
  • Family Nycteridae
    Nycteridae

    Nycteridae is the family of slit-faced or hollow-faced bats. They are grouped in a single genus, Nycteris. The bats are found in East Malaysia, Indonesia and many parts of Africa....
     (hollow-faced bats or slit-faced bats)
  • Family Megadermatidae
    Megadermatidae

    Megadermatidae, or False Vampire Bats, are a family of bats found from central Africa, eastwards through southern Asia, and into Australia....
     (false vampires)
Superfamily Vespertilionoidea
  • Family Vespertilionidae (vesper bat
    Vesper bat

    Evening bats or, perhaps more correctly, Vesper bats are the largest and best-known family of bats. They belong to the suborder Microchiroptera ....
    s or evening bat
    Evening Bat

    The Evening Bat is a species of vesper bat in the Vespertilionidae family. It is a small bat found throughout much of the midwestern and southeastern United States....
    s)
Superfamily Molossoidea
  • Family Molossidae (free-tailed bat
    Free-tailed bat

    Molossidae, or Free-tailed bats, are a family of bats within the Chiroptera order. They are generally quite robust, and consist of many strong flying forms with relatively long and narrow wings....
    s)
  • Family Antrozoidae (pallid bat
    Pallid bat

    The Pallid Bat is a species of bat, which ranges from western Canada to central Mexico. Pallid bats have larger eyes than most other species of bats in North America and have pale, long, and wide ears; their fur is generally lightly colored....
    s)
Superfamily Nataloidea
  • Family Natalidae
    Natalidae

    The family Natalidae, or funnel-eared bats are found from Mexico to Brazil and the Caribbean islands. The family comprises only one a single genus, Natalus....
     (funnel-eared bats)
  • Family Myzopodidae (sucker-footed bats)
  • Family Thyropteridae
    Thyropteridae

    Disc-winged bats are a small group of bats of the family Thyropteridae. They are found in Central America and South America, usually in moist tropical rain forests....
     (disk-winged bats)
  • Family Furipteridae
    Furipteridae

    Furipteridae is one of the family of bats. This familiy contains only two species, the Smokey Bat and the Thumbless Bat. Both are from Central America and South America, and are closely related to the bats in the Natalidae and Thyropteridae families....
     (smoky bats)
Superfamily Noctilionoidea
  • Family Noctilionidae (bulldog bat
    Bulldog bat

    The Noctilionidae family of bats, commonly known as bulldog bats orfisherman bats, are represented by two species, the Greater Bulldog Bat and the Lesser Bulldog Bat....
    s or fisherman bats)
  • Family Mystacinidae
    Mystacinidae

    Mystacinidae is a family of unusual bats, the New Zealand short-tailed bats. There is one genus, Mystacina, with two species, one of which is believed to have become extinct in the 1960s....
     (New Zealand short-tailed bats)
  • Family Mormoopidae
    Mormoopidae

    The family Mormoopidae contains bats known generally as Mormoops, Mormoops, and Pteronotus. They are found in Central America and South America, from Southern Mexico to Southeastern Brazil....
     (ghost-faced bat
    Ghost-faced Bat

    Ghost-faced Bats are mammals in the order Chiroptera and genus Mormoops. There are only two species within this genus: Mormoops blainvillii and Mormoops megalophylla....
    s or moustached bats)
  • Family Phyllostomidae (leaf-nosed bat
    Leaf-nosed bat

    The New World leaf-nosed bats are found throughout Central and South America, from Mexico to northern Argentina. They are ecologically the most varied and diverse family within the order Chiroptera....
    s)

External links

  • (see "Recent publications")