Indian flying fox flying foxes engage in oral sex, with males performing cunnilingus on females. The duration of oral sex is positively associated with the duration of copulation, suggesting that its purpose is to make the female more receptive to copulation and to increase the male's chances of fertilizing an ovum. Like other fruit bats, the Indian flying fox may be a natural reservoir for diseases including certain henipaviruses and flaviviruses. These can prove fatal to humans and domestic animals. Indian flying foxes in India and Bangladesh have tested positive for Nipah virus, a type of henipavirus. Due to human encroachment into their
Aru flying fox species group include: There is ongoing debate about whether the Aru flying fox is a distinct species. Some believe that it is a subspecies of the black-bearded flying fox, while others believe that it is distinct enough to be considered a species. They are similar in appearance to the black-bearded flying fox. The fronts of their heads are a combination of gray, black, and yellowish-white. The backs of their heads are rust-colored, and their chins are a deep red. Their necks are rust or rust-brown in color, creating the appearance of a chestnut collar. Their backs are glossy, yellowish-white, with