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Neuroethology of bat navigation

机译:蝙蝠导航的神经学

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Once a year about 15 million Mexican free-tailed bats (Tadarida brasiliensis) migrate up to 1,500 kilometers from wintering grounds, seamlessly flying over the Mexican border to enter the United States. Their destination is the Bracken Cave in southern Texas, which will be their summer home between the months of March through October. While residing there, these bats emerge every night at dusk from the narrow 100-foot-wide opening of this enormous cave and begin their nightly commute to foraging grounds located up to 50 kilometers away. Upon arrival, they will spend the night hunting for insects in mid-air while providing a valuable service to local farmers by keeping crop pests in check. Close to the break of dawn, as the night of hunting comes to an end, these bats will begin making their trip back to the roost.
机译:每年约有1500万墨西哥自由尾蝙蝠(Tadarida Brasiliensis)距离越冬场地迁移至1500公里,无缝飞越墨西哥边境进入美国。 他们的目的地是德克萨斯州南部的Bracken Cave,它将在10月至10月的三个月之间成为他们的避暑别墅。 虽然在那里居住时,这些蝙蝠每天晚上出现在黄昏的狭窄100英尺宽的这座巨大的洞穴中,并开始他们的夜间通勤,以坐落在距离酒店距离酒店距离酒店高达50公里。 抵达后,他们将在中航的昆虫过夜,同时通过保持作物害虫在检查中为当地农民提供有价值的服务。 靠近黎明的休息,随着狩猎的夜晚结束,这些蝙蝠将开始让他们的旅行回到河流。

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