E-PILOT 有夠鯊!! 跨越鹽度的惡霸-公牛鯊 episode artwork

EPISODE · Dec 2, 2025 · 15 MIN

E-PILOT 有夠鯊!! 跨越鹽度的惡霸-公牛鯊

from 雷比特生物空中講 · host 雷比特老師

詳細介紹公牛鯊(Carcharhinus leucas)的分類學地位及其非凡的生理適應能力。開篇透過回顧1916年紐澤西海岸的歷史疑案,推斷公牛鯊是因能進入低鹽度內陸水域的唯一頂級掠食者。核心內容聚焦於其獨特的生理機制,解釋了公牛鯊作為少數廣鹽性軟骨魚,如何透過精密的滲透壓調節機制在淡水中長期生存。這種生理策略涉及內分泌控制,用以關閉排鹽器官(直腸腺)並讓腎臟排出大量稀釋尿液,以對抗淡水的滲透壓。此外,也探討公牛鯊的行為學特徵,指出牠們危險性主要來自於機會主義的捕食策略與演化出的超強咬合力。總體而言,公牛鯊被視為演化上的傑作,提醒人們自然界的界線常常被生命所超越 聽完後可以自主進行線上測驗,檢視學習成效喔~(需要登入gemini) 測驗網址  https://gemini.google.com/share/904a5218a05b Powered by Firstory Hosting

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E-PILOT 有夠鯊!! 跨越鹽度的惡霸-公牛鯊

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