003780000a2200133000450024500670000065000180006765000150008565000240010065000220012404100130014670000200015910000170017977300480019610aSize of bats at birth and maternal investment during pregnancy14aMurciélagos14aBiología14aFisiología animal14aDesarrollo animal0 aInglés1 aKunz, Thomas H.1 aKurta, Allen1 tZoological Symposium3529h57q79-106d1987