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The larger average body size of megabats compared to echolocating bats [35] suggests a larger body size disrupts the flight-echolocation coupling and made echolocation too energetically expensive to be conserved in megabats. [34]
The hammer-headed bat is the largest bat in mainland Africa. [12] Males have wingspans up to 90.1 cm (2.96 ft), [ 13 ] and all individuals have forearm lengths exceeding 112 mm (4.4 in). [ 12 ] It has pronounced sexual dimorphism , more so than any other bat species in the world, [ 12 ] with males up to twice as heavy as females.
Spotted-winged fruit bats are unusually small megabats, with a head-body length of 5.2 to 6.2 centimetres (2.0 to 2.4 in), [2] a wingspan of 28 centimetres (11 in), and an adult body weight of around 13 grams (0.46 oz). Most of the head and body are covered in thick blackish-brown fur, while the underparts are a pale grey-brown.
It is among the heaviest of all bat species, with individuals weighing up to 1.40 kg (3.1 lb). The only bat species known to weigh more than the giant golden-crowned flying fox are the Indian flying fox (Pteropus medius) and great flying fox (Pteropus neohibernicus), with a maximum weight of 1.6 kg (3.5 lb) and 1.45 kg (3.2 lb) respectively.
Pteropus (suborder Yinpterochiroptera) is a genus of megabats which are among the largest bats in the world. They are commonly known as fruit bats or flying foxes, among other colloquial names. They live in South Asia, Southeast Asia, Australia, East Africa, and some oceanic islands in the Indian and Pacific Oceans. [3]
The large flying fox (Pteropus vampyrus, formerly Pteropus giganteus), also known as the greater flying fox, Malayan flying fox, Malaysian flying fox, large fruit bat, kalang, or kalong, is a southeast Asian species of megabat in the family Pteropodidae. [3]
The Egyptian fruit bat is among the few megabats using echolocation. Although it is considered a primitive form compared to non-megabat species, [3] [29] this has been questioned. [30] A few other megabat species echolocate via creating clicks with their wings. [29]
The Indian flying fox (Pteropus medius), also known as the greater Indian fruit bat, is a species of flying fox native to the Indian subcontinent. It is one of the largest bats in the world. It is of interest as a disease vector, as it is capable of transmitting several viruses to humans.