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A Mexican freetail bat (Tadaridabrasiliensis mexicana as it emerges from Carlsbad Caverns at dusk. The camera was timed by a signal form a photomultiplier tube when the bat intercepted a beam of light. See page 201. [Harold E. Edgerton, Massachusetts Institute of Technology]


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