Reproduction: The male has a thin-skinned scrotum. The penis has a well developed
baculum. The female possesses a pair of pectoral mammae. They breed once a
year and the female drops a single offspring in early February after a gestation
period of 5 months.
Behaviour: The flying foxes are highly gregarious. They are nocturnal in habits. The nocturnal habit may be for two reasons. First, they want to avoid competition for foods and other factors from diurnal birds. Second, their physiological mechanism of radioactive cooling may not be advantageous in sunlight. They roost on trees and often roost in same sites throughout the year.
Life span: Fruit bats can be well maintained in the captivity and are known to live for more than ten years.