鴨嘴獸毛髮顛覆生物學鐵律

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鴨嘴獸毛髮中獨特的空心黑色素體形態這項研究揭示了鴨嘴獸毛髮中存在一種中空且呈球狀的獨特黑色素體，這是首次在哺乳動物身上發現此類結構。過去認為中空黑色素體僅存在於鳥類中，且通常與產生虹彩光澤的長條狀結構有關，但鴨嘴獸的這種特徵卻僅呈現棕色。科學家對比了包含針鼴在內的 126 種哺乳動物，確認此構造為鴨嘴獸所獨有。這項發現挑戰了以往對黑色素體形狀與顏色之間關係的認知，並為研究哺乳動物的演化與生物合成提供了全新方向。研究推測，這種構造可能與鴨嘴獸的水生習性有關，或屬於一種非適應性的演化特徵。 -- Hosting provided by SoundOn

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鴨嘴獸毛髮顛覆生物學鐵律

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This episode was published on April 4, 2026.

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鴨嘴獸毛髮中獨特的空心黑色素體形態這項研究揭示了鴨嘴獸毛髮中存在一種中空且呈球狀的獨特黑色素體，這是首次在哺乳動物身上發現此類結構。過去認為中空黑色素體僅存在於鳥類中，且通常與產生虹彩光澤的長條狀結構有關，但鴨嘴獸的這種特徵卻僅呈現棕色。科學家對比了包含針鼴在內的 126...

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