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  • 為什么蛇要冬眠

    六一兒童網兒童動畫幼兒教育十萬個為什么

    為什么蛇要冬眠:

    • 發布時間: 2016-06-02 15:35
      所屬類別: 十萬個為什么
      介紹:

      嘟拉是個愛說大話的孩子。一天她和好朋友小冬在院子里玩捉迷藏。嘟拉找了個很隱蔽的地方藏了起來,沒想過剛過不久,她就聽見小冬的腳步聲了,心緊張的咚咚直跳:“小冬看不見我,小冬看不見我?!笨墒切《哪_步卻越走越近,嘟拉不想被找到,不想認輸,干脆一把跳出來,很害怕的大叫:“有蛇,那里有蛇,嚇死我了?!毙《犃?,頭也不回的走了。小朋友知道這是為什么嗎?因為嘟拉又在說大話,現在正是冬天,風呼呼的刮著,蛇早就去冬眠了,嘟拉怎么會看見蛇呢?我們知道很多動物都要冬眠。因為冬天的時候天氣非常寒冷,許多動物又很難找到東西吃,所以它們要靠冬眠來度過嚴寒。
      蛇是其中一種要冬眠的動物。它們的體溫隨著外界的溫度冷熱發生變化,當外界氣溫降到10攝氏度以下時,蛇的活動就減慢了,降到7攝氏度時,蛇就停止了活動,它們會鉆到地底的冰凍層下面土壤的洞穴中,開始冬眠。蛇在夏秋的時候,能夠吃到大量的食物,所以在身體里貯存了足夠的營養物質。蛇就靠這些營養度過漫長的冬天。到了春天,它們再蘇醒過來,四處活動。


    網友評論

      • L 評論:2016-12-15

        蛇什么時候

      • 檸檬 評論:2016-09-01

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