A new book

陳主任的書架

因為青蛙是「變態」動物。

什麼是「變態」呢？ 「變態」是指從小到大有完全不同的外貌變化。

為什麼青蛙和 蝌蚪長得不一樣？

蝴蝶、蜻蜓這類昆蟲在幼蟲時和長大時也不相同。

它們也是經由「變態」才能成為成蟲。

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