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题目材料：
New Zealands lesser short-tailed bat, Mystacina tuberculata, is one of only two bat species to use a true walking gait when maneuvering on the ground. It has been assumed that the specialized terrestrial habits of mystacinids evolved in New Zealand following their isolation there. Absence of native terrestrial mammalian predators in New Zealand has been hypothesized to have facilitated evolution of terrestriality. However, although it is likely that terrestrial foraging by extant Mystacina tuberculate makes it vulnerable to introduced mammalian predators, there is as yet limited available data on the actual risk of terrestriality. Indeed, Lloyd argues that although some individuals may be caught on the ground, generally they would not be easy prey: they are cryptic, fast-moving, with acute hearing and olfaction, and can quickly take flight.
以上解析由 考满分老师提供。
