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兩棲動物

How to read a taxoboxWikipedia:點樣睇生物分類框
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兩棲動物/兩棲綱
化石年代：Late Devonian - 而家
花狹口蛙,Kaloula pulchra (Gray, 1831)
花狹口蛙,Kaloula pulchra (Gray, 1831)
物種分類
界 動物界
門 脊索動物門
亞門(Subphylum): 脊索動物亞門
超綱Superclass: Tetrapoda
綱 兩棲綱
Linnaeus, 1758
Subclasses and Orders

   Order Temnospondyli - extinct
Subclass Lepospondyli - extinct
Subclass Lissamphibia
   Order Anura
   Order Caudata
   Order Gymnophiona

兩棲動物，又叫兩棲綱，泛指所有嘅青蛙、蟾蜍、火蠑螈、蠑螈。係4千萬年前由魚類嘅祖先進化而成嘅第一隻四腳動物。佢哋亦係陸地上第一群脊椎動物。

英文Amphibian源自希臘文（amphibious），意思係解兩種生活。

生理特性

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現代嘅兩棲動物近乎冚唪唥都係住淡水嘅：兩棲動物啲皮膚有高滲透性，容易俾水或者鹽通過；佢哋一浸入鹹水，身體就會勁俾鹽入侵；跟住就會造成體內鹽嘅濃度高得滯，搞到佢哋體內嘅化學過程失衡引致死亡；所以絕大多數嘅兩棲類都頂唔順鹹水[1][2]。

睇埋

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攷

[編輯]
  1. ↑ Hopkins Gareth R.; Brodie Edmund D. Jr (2015). "Occurrence of Amphibians in Saline Habitats: A Review and Evolutionary Perspective". Herpetological Monographs. 29 (1): 1-27.
  2. ↑ Can Amphibians Live In Salt Water?.
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兩棲動物
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