Egyptian fruit bat their days roosting in trees or caves, often with large groups of other bats, sometimes numbering in the thousands. They emerge from the roost to forage for food in the late evening, and return just before dawn. They hang upside down, with their wings folded closely around their bodies. Egyptian fruit bats, along with other species in the genus "Rousettus", are the only megachiropterid bats to use echolocation, which they accomplish by emitting a series of sharp clicks with their tongues. The clicks are normally slow and constant, but these clicks speed up dramatically when the bats approach an object.
Mauritian tomb bat consumes it while in flight. Their preferred food is moths, though during daylight hours they will prey upon butterflies and termites. In regions where the bats live, they often are a factor in keeping pest populations down. This is important since the bats inhabit areas often plagued by insect-borne diseases such as malaria. They usually wait for complete darkness before foraging. Over open areas, they can detect their prey at long ranges. They periodically make dives when hunting, and with each dive, they increase the rate of echolocation. The bats use audible calls to communicate with each other. When at