EP288你不知道的章魚祕密：牠們變色比你眨眼還快！

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This episode is 7 minutes long.

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This episode was published on September 12, 2024.

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from 每天五分鐘 · host 陳揚

再來就很迅速地講一下，章魚究竟是怎麼變色的呢？根據安隆博士的研究，章魚的皮膚裡有分三層，第一層是色素層（chromatophores），第二層是虹彩層（iridophores），第三層是白色層（leucophores）。烏賊皮膚色彩三層最上面的色素層，有很多小囊，每一個色素囊，周圍都有一圈肌肉，只要肌肉一起用力收縮，小點點就被拉成很大片的色塊。中間的虹彩層則是由細胞水平排列成很多薄層，在神經訊號刺激下，透過調整角度和厚度，反射、偏振出很像亮片的光澤。最底下的白色層最簡單，就是細胞裡有超白的反光蛋白（reflectin），可以幾乎反射所有可見光 -- Hosting provided by SoundOn

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EP288你不知道的章魚祕密：牠們變色比你眨眼還快！

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