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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Phragmosis ： ウィキペディア英語版 Phragmosis Phragmosis is any method by which an animal defends itself in its burrow by using its own body as a barrier. An example can be seen in the mygalomorph spider ''Idiosoma nigrum'' (Black Rugose Trapdoor Spider), which protects itself in its burrow by positioning itself so as to block the burrow with its abdomen, which is unusually hard. Even more perfect is the shield of ''Cyclocosmia'' species (Ctenizidae). It is also commonly seen in some ant genera, in which the soldiers have unusually large, disc-shaped heads, which are used to block nest entrances against intruders. ==References== * 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Phragmosis」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.