Aldabra flying fox megabats, commonly known as fruit bats, the Aldabra flying fox is herbivorous. It has been observed eating fruit from the evergreens Calophyllum inophyllum and Mystroxylon aethiopicum, the Indian almond, and fig trees such as the giant-leaved fig, Ficus rubra, and Ficus reflexa. The bat also eats flowers from the coconut tree and sisal plant and the leaves of the grey mangrove tree. It has been observed licking honeydew produced by scale insects infesting fig trees; rats exhibit the same behavior. The natural habitats of the Aldabra flying fox are subtropical or tropical mangrove forests and subtropical or tropical dry shrubland.
Rennell flying fox 1962, Hill published that he considered Rennell's flying fox as a subspecies of the Solomons flying fox, with a trinomen of "Pteropus rayneri rennelli". The forearm of the holotype was long. The fur of its back is uniformly brownish, with the fur of its neck and face lighter. Females give birth to one offspring per litter, with the young called a "pup." Its lifespan is estimated at 8–9 years. It is nocturnal, roosting in sheltered places such as trees during the day. Individuals roost by themselves. It is only known from Rennell Island, which is part of the Solomon Islands.