Nest - Su (English spelling)
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A nest is something that animals build to stay in one place and rest, give birth, and raise their offspring. Some use natural caves or the gaps between the branches of large trees, but many build extremely elaborate nests. They come in all sorts of forms and shapes, such as digging holes in the ground, spitting silk to hold together leaves, or combining twigs. In spiders and antlions (larvae of the antlion fly), nests also serve as traps. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
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動物が生活していく際に，1ヵ所にとどまって休息したり，出産したり，子孫を育てたりするために築いたもの。自然の洞窟，大樹の枝の間などを利用する場合もあるが，すこぶる精巧なものをつくるものも多い。土に穴を掘る，糸を吐いて葉などをまとめる，小枝を組合せるなど，あらゆる形態，性状がある。クモやアリジゴク (ウスバカゲロウの幼虫) では，巣は捕獲器の役目も兼ねる。
出典 ブリタニカ国際大百科事典 小項目事典ブリタニカ国際大百科事典 小項目事典について 情報 |
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