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Science 13 August 1982:
Vol. 217. no. 4560, pp. 663 - 664
DOI: 10.1126/science.217.4560.663
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Articles

Localization of an Elevated Sound Source by the Green Tree Frog

H. CARL GERH 1 and JÜRGEN RHEINLAEN 2

1 Division of Biological Science, University of Missouri, Columbia 65211
2 Lehrstuhl für Allgemeine Zoologie, Ruhr-Universität, Bochum, Federal Republic of Germany

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.

Submitted on August 28, 1981
Revised on March 19, 1982

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Science. ISSN 0036-8075 (print), 1095-9203 (online)