Target Structure and Echo Spectral Discrimination by Echolocating Bats

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Science  20 Dec 1974:
Vol. 186, Issue 4169, pp. 1130-1132
DOI: 10.1126/science.186.4169.1130


Echolocating bats can use sonar to discriminate among targets which reflect echoes differing in spectral distribution of energy but not in overall intensity. They can detect differences smaller than 1 millimeter in fine target structure. Bats may be capable of classifying targets from echo spectral signatures and might thus be able to distinguish among flying insect prey by sonar.