Nocturnal animals

Bats (order Chiroptera ) are winged mammals; the only mammals capable of true and sustained flight. Bats are more agile in flight than most birds, flying with their long spread-out digits covered with a thin membrane or patagium. The smallest bat, and one of the smallest extant mammals, is Kitti's hog-nosed bat, which is in length, across the forearm and in mass. The largest bats are the flying foxes, with the giant golden-crowned flying fox (Acerodon jubatus) reaching a weight of and having a wingspan of .

The aardwolf (Proteles cristatus) is an insectivorous hyaenid species, native to East and Southern Africa. Its name means 'earth-wolf' in Afrikaans and Dutch. It is also called the maanhaar-jackal (Afrikaans for 'mane-jackal'), termite-eating hyena and civet hyena, based on its habit of secreting substances from its anal gland, a characteristic shared with the African civet.

thumb|Ceylon frogmouth|Ceylon frogmouths in the [[Western Ghats]] The frogmouths (Podargidae) are a group of nocturnal birds related to owlet-nightjars, swifts, and hummingbirds. Species in the group are distributed in the Indomalayan and Australasian realms.

thumb|right|Owl|Owls are well known for being nocturnal, but some owls are active during the day.

The cacomistle (; Bassariscus sumichrasti), also spelled cacomixtle, is a primarily nocturnal, arboreal, omnivorous member of the carnivoran family Procyonidae (coatis, kinkajous and raccoons). Depending on the location, its preferred habitats are humid and tropical evergreen jungle and montane cloud forests; seasonally, it may venture into drier, deciduous forests.

species of insect

species of insect

zoo building where nocturnal animals are kept