A, reconstructed pattern of the evolution of polytocy across Chiroptera (using make.simmap of phytools).
B, detail showing families Miniopteridae, Cistugidae and Vespertilionidae. Coloured circles at the nodes indicate the
posterior probabilities of the states. The tree shown includes 551 species and is based on the mammal tree presented at http://vertlife.org/ (see Material and Methods). Two species illustrate Myotinae on the left side [Myotis albescens (upper
left) and Myotis riparius (lower left)], and two species illustrate Vespertilioninae [Lasiurus ega (upper right) and Eptesicus
brasiliensis (lower right)]. Photograph credits: Roberto L. M. Novaes and Guilherme Garbino.