Anoura caudifer or the tailed tailless bat (that is really its name) has an unusually high metabolic rate, & must spend at least 4 hours a night feeding. (Photo Arthur Tahara)

Peterson's long-fingered bat (Miniopterus petersoni) from southeastern Madagascar. (Photo Goodman et al. 2008)

Seba's short-tailed bat (Carollia perspicillata) is a common bat species from Latin America. (Photo Marco Mello)

The dwarf dog-faced bat (Molossops temminckii) is native to South America. (Photos fauna paraguay)

The big-eared brown bat (Histiotus macrotus) is native to Argentina and Chile. (Photo Pablo Caceres Contreras)

The dusky pipistrelle (Pipistrellus hesperidus) is a small bat from Africa. (Photo B. Stanley)

The Duke of Abruzzi's free-tailed bat (Chaerephon aloysiisabaudiae) from Africa. (Photo Jakob Fahr)

The cyclops roundleaf bat, or cyclops leaf-nosed bat (Hipposideros cyclops) can be found in the forests of equatorial Africa. (Photo KD Dijkstra)

The ashy-gray tube-nosed bat (Murina cineracea) from Asia. (Photo NM Furey)

The black-bellied fruit bat (Melonycteris melanops) from Papua New Guinea. (Credit Joseph Smit)

Dekeyser's nectar bat (Lonchophylla dekeyseri) is an endangered species from Brazil & Bolivia. (Photo Hernanifi)

A white-shouldered short-faced bat (Ametrida centurio) from Suriname. (Photo @burtonlim)

A female Eastern red bat (Lasiurus borealis). (Photo @joelsartore)

The Azores noctule (Nyctalus azoreum) is a vulnerable species found only in the Azores archipelago. It is the only bat species in the world that hunts insects principally by day. (Photos Filipe Lopes)

The African long-fingered bat (Miniopterus africanus) is a type of vesper bat, found only in the tropical montane forests of Kenya. (Photo João Pedro Silva)

Khajuria's leaf-nosed bat (Hipposideros durgadasi) from central India. It is vulnerable & threatened by habitat loss. (Photo Kaur et al. 2014)

The Admiralty flying fox (Pteropus admiralitatum) is a fruit bat from Papua New Guinea and the Solomon Islands. (Photo Lars Petersson)

Steppe whiskered bat (Myotis aurascens). (Photo Levente B.)

Percival's trident bat (Cloeotis percivali). (Photos Merlin Tuttle, Rachael Cooboh)

Melck's house bat (Neoromicia melckorum) from southern Africa. (Photo Ernest C. J. Seamark)