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- 2023-4-21
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- 1970-1-1
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P1. 介紹蝙蝠的回聲定位法
P2. 說明蝙蝠的回聲定位其實在不同情況放不同頻率), 近期研究發現noseleaves這個器官可以幫助蝙蝠完成複雜任務
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P1
1. Context: Insect-eating bats – echolocation – sensory perception
2. Elaborate: emit short, high-frequency sounds from mouths or nostrils – bounce off objects and surface and then return to ears
3. Argument: echolocation is so advanced – fly in darkness, snatch insects, hover just above water
P2
1. Scientists: bats emit different frequency in differing situations
2. Recent research: noseleaves around their nostrils – 3D computer simulations – resonate strongly with certain frequencies of sound – different frequencies of sound to discharge in different directions (lower: vertically ; higher horizontally)
3. Conclusion: the complexity the noseleaves add to ultrasound perception – help to perform difficult tasks
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