æµ·ã®ä¸ãããããæ¼ãã¯ã©ã²çãªåç©ãå«ãã¯ã·ã¯ã©ã²é¡ã¯ãåºæ¬çã«éª¨æ ¼ãæããªããã®ã¨ãã¦ç¥ããã¦ãã¾ããããããæ°ãã«çºè¦ãããã¯ã·ã¯ã©ã²é¡ã®åç³ã«ã¯éª¨æ ¼ãããããã¤ã¦ã¯éª¨ãæã¤åç©ã¨ãã¦çæ¯ãã¦ãããã¨ãå¤æãã¾ãããããã¾ã§ä¿¡ãããã¦ããé²åã®èããæ ¹æ¬çã«è¦ããã®ã ã¨ãã¦ãç 究è ãã«è¡æãèµ°ã£ã¦ãã¾ãã A vanished history of skeletonization in Cambrian comb jellies | Science Advances http://advances.sciencemag.org/content/1/6/e1500092 Ancient comb jellies had skeletons, but they still lost the arms race | The Verge http://www.theverge.com/2015
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