Megabat evolved early in the lineage of chiropterans. Although echolocation was later lost in family Pteropodidae, bats in the genus "Rousettus" are capable of primitive echolocation through clicking their tongues, and some species have been shown to create clicks similar to those of echolocating bats using their wings. Both echolocation and flight are energetically expensive processes. The nature of the flight and echolocation mechanism of bats allows for creation of echolocation pulses with minimal energy use. Energetic coupling of these two processes is thought to have allowed for both energetically expensive processes to evolve in bats. The loss of echolocation may
Bahaman funnel-eared bat close to 50% of their mothers’ weight. Females are fully responsible for giving care to their newborn, due to the fact that they give one offspring per event. The population of the Bahaman funnel-eared bat is decreasing due to their declining habitat environment. All funnel-eared bats have, very large and funnel-shaped ears. These allow them to detect near silent sounds and return echoes through echolocation. Small papillae cover the ears of these bats, which increases auditory sensitivity. They use olfactory and tactile cues in communication as other mammals do. This species is not very well known, because they are only