Animal echolocation in the external ear. There are two hypotheses about the evolution of echolocation in bats. The first suggests that laryngeal echolocation evolved twice in Chiroptera, once in the Yangochiroptera and once in the horseshoe bats (Rhinolophidae). The second proposes that laryngeal echolocation had a single origin in Chiroptera, was subsequently lost in the family Pteropodidae (all megabats), and later evolved as a system of tongue-clicking in the genus "Rousettus". Individual bat species echolocate within specific frequency ranges that suit their environment and prey types. This has sometimes been used by researchers to identify bats flying in an area simply by
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