Large flying fox fox was one of the many mammal species originally described by Linnaeus in the landmark 1758 10th edition of his "Systema Naturae", receiving the name "Vespertilio vampyrus". The large flying fox is among the largest species of bat. It weighs and has a wingspan of up to . Its head-body length is . As with all megabats, it has a fox-like face, hence its name. It lacks a tail and has pointed ears. The hairs on much of its body are long and woolly, but are shorter and more erect on the upper back. The mantle hairs tend to be
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