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
Syconycteris Syconycteris is also capable of echolocation. The Etolo tribe of New Guinea will sometimes include Syconycteris bats in their diet, along with other bats. Syconycteris is unique among Pteropid bats because they do not produce spats. Spats are created by slow feeding bats that chew and swallow the juices of their food while pressing the pulp and seeds into a spat or wadge which is then spit out. This makes them more effective seed dispersers because seeds in spats tend to travel less distance and are more vulnerable to fungi compared to seeds that are defacated like those eaten by