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1·The smallest known mammal is Kitti's hog-nosed bat, Craseonycteris thonglongyai, from western Thailand, which measures between 2.9cm and 3.3cm long.

报道说，目前，世界上最小的哺乳动物为生活在泰国的一种名为Craseonycteris thonglongyai的蝙蝠，它的长度2.9厘米至3.3厘米。