翻訳と辞書 Words near each other ・ Phacidiopycnis padwickii ・ Phacidiostromella ・ Phacidium infestans ・ Phaclofen ・ Phacocerus ・ Phacochoerus ・ Phacodonesis ・ Phacoemulsification ・ Phacolith ・ Phacopida ・ Phacopidae ・ Phacopina ・ Phacopoidea ・ Phacops ・ Phacops fecundus ・ Phacops rana ・ Phacopsis ・ Phacopteronidae ・ Phacotaceae ・ Phacotus ・ PHACTR1 ・ PHACTR3 ・ Phacus ・ Phacusa ・ Phacusa (moth) ・ Phacusa birmana ・ Phacusa chalcobasis ・ Phacusa crawfurdi ・ Phacusa discoidalis ・ Phacusa dolosa Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Phacops rana ： ウィキペディア英語版 Phacops rana ''Phacops rana'' (''Eldredgeops rana'') is a species of trilobite from the middle Devonian period. Their fossils are found chiefly in the northeastern United States, southwestern Ontario, and in Morocco. == Description == ''Phacops rana'' can be recognized by its large eyes (which remind some observers of a frog's eyes — the specific name ''rana'' is a reference to a common frog), its fairly large size (up to 6 inches long), and its habit of rolling up into a ball like a pill bug. In order to protect themselves from predators, ''Phacops rana'' would roll into a ball with its hard exoskeleton on the outside as protection. Many other trilobites possessed the same ability, but ''Phacops rana'' nearly perfected it. The slightest amount of sediment would trigger their senses, and ''Phacops rana'' would be hidden in a tiny shelter made of its own body. Although this safety feature often helped them to evade predators, occasionally it backfired and the trilobite would be buried under heavy sediment. Their fossils can still be found in balled-up positions 400 million years later. 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「Phacops rana」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.