 After mating, tree bats hibernate alone in tree cavities, bark crevices, beneath leaf litter, or in the twilight zone of caves.Gestation typically takes 50–60 days, so that parturition of pups occurs in early summer when insect availability is high.Pups are born breech by presentation, and the mother consumes the placenta  Females typically give birth to two offspring, with an even sex ratio.