. Advances in the study of mammalian behavior. Mammals. Mechanisms of Communication 277 160 -1 „ 80 - 40 - 20 - 10 - Little brown bat 25 2^ 32 Hedgehog. Chinchilla Elephant 40 80 160 320 I 640 1280 \ \ 2560 5120 Maximum A t (psec) Fig. 6. Relationship between maximum A-]- (maximum interaural distance divided by the speed of sound) and high-frequency hearing hmit (highest frequency audible at 60-dB sound pressure level). Numbers and letter represent points for individual species. All high-frequency limits were determined in air except as noted. Key: E, elephant {Elephas maximus); 1, opossum (Di
. Advances in the study of mammalian behavior. Mammals. Mechanisms of Communication 277 160 -1 „ 80 - 40 - 20 - 10 - Little brown bat 25 2^ 32 Hedgehog. Chinchilla Elephant 40 80 160 320 I 640 1280 \ \ 2560 5120 Maximum A t (psec) Fig. 6. Relationship between maximum A-]- (maximum interaural distance divided by the speed of sound) and high-frequency hearing hmit (highest frequency audible at 60-dB sound pressure level). Numbers and letter represent points for individual species. All high-frequency limits were determined in air except as noted. Key: E, elephant {Elephas maximus); 1, opossum (Didelphis virginiana); 2, hedge- hog {Hemiechinus auritus); 3, tree shrew (Tupaia glis); 4, horseshoe bat {Rhinolo- phus ferrumequinum); 5, little brown bat (Myotis lucijugus); 6, big brown bat {Eptesicus fuscus); 7, slow loris {Nycticebus coucang); 8, potto {Perodicticus potto); 9, bushbaby (Galago senegalensis); 10, owl monkey {Actus trivirgatus); 11, squirrel monkey (Saimiri sciureus); 12, macaque {Macaca mulatta); 13, chimpanzee {Pan troglodytes); 14, human {Homo sapiens); 15, rabbit {Oryctolagus cuniculus); 16, kangaroo rat {Dipodomys merriami); 17, cotton rat {Sigmodon hispidus); 18, gerbil {Meriones unguiculatus); 19, laboratory rat {Rattus norvegicus); 20, feral house mouse {Mus musculus); 21, laboratory mouse {Mus musculus); 22, guinea pig {Cavia porcellus); 23, chinchilla {Chinchilla laniger); 24, dolphin {Inia geoffrensis) (under- water); 25, porpoise {Tursiops truncatus) (underwater); 26, killer whale {Orcinus orca) (underwater); 27, dog^Canis familiaris); 28, sea lion {Zalophus californianus) (in air); 29, harbor seal {Phoca vitulina) (underwater); 30, harbor seal {Phoca vitu- lina) (in air); 31, ringed seal {Pusa hispida) (underwater); 32, harp seal {Pagophilus groenlandicus) (underwater); and 33, domestic sheep {Ovis aries). ner and Heffner, 1980; Fig. 6). Larger animals can not only hear low frequencies better, but they can also better detect brief sounds from a
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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectmammals
