Megabat long, thus smaller than some microbats, for example, the Mauritian tomb bat. The largest attain a wingspan of , and weigh as much as . Most fruit bats have large eyes, allowing them to orient themselves visually in twilight and inside caves and forests. Their sense of smell is excellent. In contrast to the microbats, the fruit bats do not use echolocation (with one exception, the Egyptian fruit bat "Rousettus egyptiacus", which uses high-pitched tongue clicks to navigate in caves). Megabats make up the only family (Pteropodidae) in order Chiroptera that is not capable of laryngeal echolocation. Echolocation and flight
Bats of Canada Bats of Canada There are eighteen indigenous species of bats in Canada, which are found in many parts of the country. They are insectivores, and are prey to falcons, hawks, owls, snakes, cats, and raccoons. The little brown bat is the most common and widely distributed of Canada's bat species, more prevalent in Eastern Canada than in Western Canada or Northern Canada. The nocturnal bat roosts in dark places during the day, and preys on insects at night. Their echolocation calls are emitted 20 times per second, increasing to 200 times per second while chasing prey. The habitat range of