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
Black flying fox roosts with the grey-headed flying fox ("Pteropus poliocephalus"), the spectacled flying fox ("P. conspicillatus"), and/or the little red flying fox ("P. scapulatus"). They roost in mangroves, paperbark swamps, patches of rainforest and bamboo forests, and very rarely in caves or underneath overhangs. Black flying foxes breed once a year. A single young is born and carried by its mother for the first month of life, after which it is left behind in the roost when the mother is out foraging at night. Black flying foxes eat pollen and nectar from native eucalyptus, lilypillies, paperbark, and turpentine trees. When native foods