Localization of an Elevated Sound Source by the Green Tree Frog

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Science  13 Aug 1982:
Vol. 217, Issue 4560, pp. 663-664
DOI: 10.1126/science.217.4560.663


Female green tree frogs readily localized an elevated sound source. Prior to hopping on sticks that formed a three-dimensional grid, females usually scanned laterally with their heads elevated after first scanning in the normal, nonelevated fashion. Unlike mammals and owls, frogs lack external anatomical features specialized for resolving vertical and horizontal components of source direction.