2023
DOI: 10.1186/s12862-023-02188-w
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Does the expensive brain hypothesis apply to amphibians and reptiles?

Zitan Song,
Michael Griesser,
Caroline Schuppli
et al.

Abstract: Vertebrate brains show extensive variation in relative size. The expensive brain hypothesis argues that one important source of this variation is linked to a species’ ability to generate the energy required to sustain the brain, especially during periods of unavoidable food scarcity. Here we ask whether this hypothesis, tested so far in endothermic vertebrates, also applies to ectotherms, where ambient temperature is an additional major aspect of energy balance. Phylogenetic comparative analyses of reptiles an… Show more

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