title: Hearing in domestic pigs (Sus scrofa) and goats (Capra hircus).
abstract: Behavioral audiograms were determined for three pigs and two goats. The hearing of the pigs ranged from 42 Hz to 40.5 kHz with a region of best sensitivity from 250 Hz to 16 kHz. Hearing in goats ranged from 78 Hz to 37 kHz with a well-defined point of best sensitivity at 2 kHz. Because these animals are unable to localize high-frequency tones, it seems unlikely that selective pressure to use the interaural spectral-difference cue for sound localization is behind their high-frequency hearing. Instead, we suggest that these and other hoofed mammals evolved high-frequency hearing in order to use monaural locus cues which prevent front/back locus reversals.
authors: Department of Psychology, University of Toledo, Ohio 43606.
authors: R S
authors: RS
authors: Heffner
authors: H E
authors: HE
authors: Heffner
mesh_terms: D000161:Acoustic Stimulation / Q000379:methods; D000818:Animals; D001299:Audiometry; D005260:Female; D006041:Goats / Q000502:physiology*; D006309:Hearing / Q000502:physiology*; D013552:Swine / Q000502:physiology*