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CZ:Ref:DOI:10.1098/rsbl.2005.0333

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Safi, K.; M.A. Seid & D.K.N. Dechmann (2005), "Bigger is not always better: when brains get smaller", Biology Letters 1 (3): 283–286, DOI:10.1098/rsbl.2005.0333 [e]

Based on the analysis of published data on body mass, wing area and absolute brain size in 104 species of bats, the authors conclude that brain size is a trade-off between cognitive requirements imposed by the natural or social environment, and energetic constraints, particularly in relation to flight.
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