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We investigated the potential relationships between foraging strategies and relative brain and brain region volumes in predatory (animal-eating) echolocating bats. The species we considered represent the ancestral state for the order and approximately 70% of living bat species. The two dominant foraging strategies used by echolocating predatory bats are substrate-gleaning (taking prey from surfaces) and aerial hawking (taking airborne prey). We used species-specifi c behavioral, morphological,doi:10.1159/000090980 pmid:16415571 fatcat:pucnfkz6qrb4ndy4fzwqwoo52i