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Flying fox species vary in body weight, ranging from 120–1,600 g (0.26–3.53 lb). Across all species, males are usually larger than females. [11] The large flying fox has the longest forearm length and reported wingspan of any bat species, [3] but some bat species exceed it in weight.
The great flying fox is the largest bat on the island New Guinea, [10] as well as the whole of Melanesia. [11] Its forearm length ranges from 165–207 mm (6.5–8.1 in), [12] and individuals can weigh up to 1.6 kg (3.5 lb). [3]
The great flying fox has a slightly shorter forearm length, and its wingspan is thus presumed to be lesser as well. [13] The wingspan of the Indian flying fox is up to 1.5 m (4.9 ft), [14] while the giant golden-crowned flying fox has a wingspan of 1.5–1.7 m (4.9–5.6 ft). [12]
A roosting flying fox is positioned upside down with its wings wrapped up. [18] When it gets too warm, a flying fox fans itself with its wings. [12] Roosting bats are restless until midmorning. Female large flying fox gestations are at their highest between November and January in Peninsular Malaysia, but some births occur in other months. [19]
The black flying fox has short, black hair with a contrasting reddish-brown mantle, and a mean forearm length of 164 mm (6.46 in) and a mean weight of 710 g (1.57 lb). It is one of the largest bat species in the world, and has a wingspan of more than 1 metre (39 in).
Wingspan is visible as this flying fox skims water to drink. The grey-headed flying fox is the largest bat in Australia, with the adult wingspan reaching up to 1 m (3 ft 3 in) in length and weighing up to 1 kg (2.2 lb). [6]
Exposure to flying fox blood, urine, or feces cannot cause infections of Australian bat lyssavirus. Since 1994, there have been three records of people becoming infected with it in Queensland—each case was fatal. [135] Flying foxes are also reservoirs of henipaviruses such as Hendra virus and Nipah virus. Hendra virus was first identified in ...
The wing is extended with a forearm measuring 120 to 150 millimetres in length, the head and body combined is 125 to 200 mm. The length from the tip to base of the ear is 29 to 40 mm, and these are quite prominent for an Australian 'flying-fox'. [6] [5] A measured weight range of 300 to 600 grams, gives the species an average mass of 450 grams. [6]