Journal
ANIMAL BEHAVIOUR
Volume 65, Issue -, Pages 385-389Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1006/anbe.2003.2059
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Conditioned taste aversions function by preventing an. organism from ingesting a food previously associated with gastrointestinal malaise. Taste-aversion learning has been observed in many animals: molluscs to mammals, insects to birds. However, among mammals, neither bats nor monophagous species have been investigated adequately. Here we show that although three dietary generalists (one insectivorous and two frugivorous bats) readily acquired taste aversions, the common vampire bat, Desmodus rotundus, a monophageous feeder on vertebrate blood, did not learn to associate a novel flavour with aversive gastrointestinal events. We interpret these data as consistent with the hypothesis that taste aversions are an adaptive specialization of learning. (C) 2003 The Association for the Study of Animal Behaviour. Published by Elsevier Science Ltd. All rights reserved.
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