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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.
A 1994 study of the straw-coloured fruit bat (Eidolon helvum) and hammer-headed bat (Hypsignathus monstrosus) found a mean respiratory exchange ratio (carbon dioxide produced:oxygen used) of approximately 0.78.
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 ]
Hammer-headed bat (Hypsignathus monstrosus) Genus Megaloglossus [42] [36] Azagnyi fruit bat (Megaloglossus azagny) Woermann's bat (Megaloglossus woermanni) Genus Micropteropus [36] Hayman's dwarf epauletted fruit bat (Micropteropus intermedius) [43] Peters's dwarf epauletted fruit bat (Micropteropus pusillus) [44] Genus Myonycteris [45]
A few species of bat, including the hammer-headed bat, [7] Buettikofer's epauletted fruit bat, Franquet's epauletted fruit bat, Peters's epauletted fruit bat, and Gambian epauletted fruit bat [8] The Ryukyu spiny rat and Tokunoshima spiny rat [9]
The bats’ names can play a larger role in the contest than their cuteness. Last year’s winner was a female Townsend’s big-eared bat from southern Oregon dubbed “William ShakespEAR”.
Bats have been traditionally thought to be a monophyletic group; according to this model, all living fruit bats and microbats (Microchiroptera) are descendants of a common ancestor species that was already capable of flight. [3] However, there are alternate hypotheses which conclude that bats are polyphyletic.
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