Ç¥ÁØ °èÅë¹ß»ý¼ö¸¦ ¿¬±¸ÇÔÀ¸·Î¼, ¸ðµç Á¾µéÀÌ ±× Á¾¸¸ÀÇ °èÅëÀûÀÎ ¿ª»ç°¡ ÀÖ´Ù´Â °ÍÀ» º¼ ¼ö ÀÖ°Ô µË´Ï´Ù. °¢ Á¾Àº original common ancestor°ú ¿¬°áµÇ´Â ±×µéÀÇ °øÅëÁ¶»óÀ» °¡Áö°í ÀÖ½À´Ï´Ù. ¿ì¸®´Â ÀÌ ¿ª»çÀÇ Áõ°Å¿Í °èº¸¸¦ °¡Áö°í ÀÖ´Â À¯±âü¸¦ ±â´ëÇÒ ¼ö ÀÖ½À´Ï´Ù. Ç¥ÁØ °èÅë¹ß»ý¼ö´Â ÁÖ¾îÁø Á¾¿¡ ´ëÇØ¼ ¾î¶°ÇÑ ¿ª»çÀûÀÎ Áõ°Å°¡ °¡´ÉÇÏ¸ç ¾î¶°ÇÑ °ÍÀÌ ºÒ°¡´ÉÇÑÁö ¿¹ÃøÇØ ÁÙ ¼ö ÀÖ½À´Ï´Ù.
ÁøÈ¸¦ À§ÇÑ Á»´õ À¯¸íÇÑ Áõ°ÅµéÀÇ ÀϺδ »ý¹°ÇÐ Àüü¿¡ °ÉÃÄ ¹ß°ßµÇ´Â ÇØºÎÇÐÀûÀ¸·Î³ª ȤÀº ºÐÀÚ»ý¹°ÇÐÀûÀ¸·Î ±â´ÉÀÌ ¾ø°Å³ª ÈçÀûÀ¸·Î ³²Àº ´Ù¾çÇÑ ÈçÀû Ư¼º(vestigial characters)ÀÔ´Ï´Ù.
´ëÁøÈ ¿ª»ç¸¦ ÅëÇØ¼ ƯÁ¤±â´ÉÀº »ý±â±âµµ ÇÏ°í »ç¶óÁö±âµµ ÇÕ´Ï´Ù. ±×·¯¹Ç·Î ¿ì¸®´Â°øÅëÁ¶»ó°ú Á¡ÁøÁÖÀÇ¿¡ ÀÇÇÑ Á¦ÇÑ ¶§¹®¿¡ ¸¹Àº »ý¸íüµéÀÌ, ÀÒ¾î ¹ö¸° ±â´ÉÀÇ ±¸Á¶ÀûÀÎ ÈçÀûÀÎ ÈçÀû±â°üÀ» °¡Áö°í ÀÖÀ» °ÍÀ̶ó°í ¿¹ÃøÇÒ ¼ö ÀÖ½À´Ï´Ù. (Á¤È®ÇÑ ÁøÈ·ÐÀû ¸ÞÄ«´ÏÁòÀº ±×°ÍÀÌ Á¡ÁøÀûÀÎ ÇÑ ¿©±â¿¡¼´Â ÇÊ¿äÇÏÁö ¾Ê½À´Ï´Ù.) ÀÌ·¯ÇÑ °ÍÀÌ Á¸ÀçÇÒ ¸í¹éÇÑ ÀÌÀ¯°¡ ¾ø±â ¶§¹®¿¡, ±â´ÉÀÌ ¾ø´Â Ư¼ºµéÀº »ý¸íüÀÇ Æ¯È÷ ¸Å¿ì È¥µ¿½º·´°Ô Çϴ Ư¡ÀÔ´Ï´Ù. ¶ÇÇÑ ÈçÀû ±â°üµéÀº ´Ù¸¥ »ý¸íüÀÇ µ¿ÀÏÇϰųª Á»´õ ¹ß´ÞµÈ ±¸Á¶¿Í ºñ±³ÇÒ °æ¿ì, ¼·Î ´Ù¸£°Å³ª ȤÀº »ó´ëÀûÀ¸·Î °æ¹ÌÇÑ ±â´ÉÀ» °¡Áö°í ÀÖ½À´Ï´Ù.
»ý¸íüÀÇ °ÅÀÇ ¾µ¸ð ¾ø°Å³ª ±â´ÉÀÌ ¾ø´Â Ư¼º¿¡ °üÇÑ »ç·Ê´Â »ó´çÈ÷ ¸¹À¸¸ç, À̰͵éÀº ¸Å¿ì ÀÚÁÖ ÁøÈ ¿ª»ç·Î ¼³¸íµË´Ï´Ù. ¿¹¸¦µé¾î, ¹ìÀº 4´Ù¸®°¡ ´Þ¸° ÆÄÃâ·ùÀÇ ÈļÕÀ̶ó°í ¾Ë·ÁÁ® ÀÖ½À´Ï´Ù. ´ëºÎºÐÀÇ ºñ´Ü¹ì(´Ù¸®°¡ ¾ø´Â ¹ì)Àº ±×µéÀÇ ÇǺξƷ¡ ÈçÀû±â°üÀûÀÎ °ñÆÇÀÌ ¼û°ÜÁ® ÀÖ½À´Ï´Ù. (Cohn 2001; Cohn and Tickle 1999). ÀÌ ºñ´Ü¹ìÀÇ ÈçÀû±â°üÀûÀÎ °ñ¹ÝÀº ôÃß¿¡ ºÙ¾îÀÖÁö ¾ÊÀ¸¸ç(´ëºÎºÐÀÇ Ã´Ãßµ¿¹°Àº ôÃß¿¡ ºÙ¾îÀÖ½À´Ï´Ù.), ´ÜÁö º¹°¿¡¼ ¶°´Ù´Õ´Ï´Ù. ÀϺΠµµ¸¶¹ìÀº ±×µéÀÇ ÇǺξƷ¡ ¹Û¿¡¼´Â º¸ÀÌÁö ¾Ê´Â ÈçÀû±â°üÀûÀÌ°í ±â´ÉÀÌ ¾ø´Â ´Ù¸®¸¦ °¡Áö°í ÀÖ½À´Ï´Ù(Raynaud and Kan 1992). µ¿±¼¿¡ »ì°í ÀÖ´Â ¸¹Àº µ¿¹°µé, ¿¹¸¦µé¾î ¹°°í±â Astyanax mexicanus(¸ß½ÃÄ Åׯ®¶ó, ¿ªÁÖ : ±¹³»¿¡¼´Â 'ºí¶óÀεå ÄÉÀ̺ê Ä«¶ó½Å'À̶ó°í ºÒ¸®¸ç ±¸ÀÔÀÌ °¡´ÉÇÕ´Ï´Ù.)¿Í »ì¶ó¸¸´õ Á¾ÀÎ Typhlotriton spelaeus¿Í Proteus anguinusÀº ¾ÕÀ» º¼ ¼ö ¾øÁö¸¸, ¾ÆÁ÷µµ ÈçÀû±â°üÀûÀÎ ´«À» °¡Áö°í ÀÖ½À´Ï´Ù(Besharse and Brandon 1976; Durand et al. 1993; Jeffery 2001; Kos et al. 2001).
¸ß½ÃÄ Åׯ®¶óÀÇ ´«Àº ¾ÕÀ» º¼ ¼öµµ ¾øÀ¸¸ç, ÀÌ·¯ÇÑ °ÍÀÌ ÇÊ¿ä ¾øÀ½¿¡µµ ºÒ±¸Çϰí, ·»Á Æ÷ÇÔÇÏ¿©, ÅðÈÇÑ ¸Á¸·, ÅðÈÇÑ ½Ã½Å°æ°ú ´«ÀÇ °ø¸·À» °¡Áö°í ÀÖ½À´Ï´Ù (Jeffery 2001). ¾ÕÀ» ¸øº¸´Â »ì¶ó¸¸´õ´Â ¸Á¸·°ú ·»Áî°¡ ÀÖ´Â ´«À» °¡Áö°í ÀÖÀ¸³ª, ´«²¨Ç®ÀÌ ´«À§·Î ÀÚ¶ó¼, ¿ÜºÎÀÇ ºûÀ» Â÷´ÜÇϰí ÀÖ½À´Ï´Ù(Durand et al. 1993; Kos et al. 2001). ¹Îµé·¹´Â reproduction ¾øÀÌ reproduce ÇÕ´Ï´Ù(´ÜÀ§»ý½ÄÀ¸·Î ¾Ë·ÁÁ³½À´Ï´Ù.), ±×·¯³ª, ±×µéÀº ¾ÆÁ÷µµ ²É°ú ²É°¡·ç(ÀÌ µÎ°¡Áö´Â À¯¼º»ý½ÄÀÇ ¼öÁ¤¿¡ »ç¿ëµÇ´Â ±â°üÀÔ´Ï´Ù.)¸¦ °¡Áö°í ÀÖ½À´Ï´Ù(Mes et al. 2002). ²É°ú ²É°¡·ç´Â ±×·¯¹Ç·Î, ¹Îµé·¹¿¡°Ô´Â ¾µµ¥ ¾ø´Â Ư¼ºÀÎ °ÍÀÔ´Ï´Ù. Àΰ£ÀÇ Á¶»óÀº ½Ä¹°¼º ¹°ÁúÀ» ¾Ã°í °¡´Âµ¥ ù° ¾î±Ý´Ï¿Í µÑ° ¾î±Ý´Ï°¡ ÇÊ¿äÇÑ °ÍÀ¸·Î ¾Ë·ÁÁ® ÀÖ½À´Ï´Ù.¸ðµç ¼ºÀÎÀÇ 90% ÀÌ»óÀº 3¹øÂ° ¾î±Ý´Ï(º¸ÅëÀº »ç¶û´Ï¶ó°í ¾Ë·ÁÁ³½À´Ï´Ù.)°¡ ³ª¿É´Ï´Ù. ÀϹÝÀûÀ¸·Î À̵é ÀÌ»¡Àº ÀÕ¸ö¿¡¼ ºÎÅÍ ³ª¿À´Â ¾ÊÀ¸¸ç, ¸ðµç °³ÀÎÁß 1/3Àº »ç¶û´Ï°¡ ±âÇüÀ̰ųª ´·ÁÁ® ÀÖ½À´Ï´Ù(Hattab et al. 1995; Schersten et al. 1989). ÀÌ ¾µ µ¥ ¾ø´Â ±â´ÉÀº ½ÉÇÑ ÅëÁõÀ» ÀÏÀ¸Å°°Å³ª, »óó°¡ »ý±æ À§ÇèÀÌ Áõ°¡½ÃŰ°Å³ª, ȤÀº º´ÀÌ °É¸®°Å³ª Á×À½¿¡ À̸£°Ô ÇÒ ¼öµµ ÀÖ½À´Ï´Ù(Litonjua 1996; Obiechina et al. 2001; Rakprasitkul 2001; Tevepaugh and Dodson 1995). À¶ÇÕµÈ ³¯°³ ¶Ñ²±¾Æ ¿Ïº®ÇÏ°Ô Çü¼ºµÈ ³¯°³¸¦ °¨Ãß°í ÀÖ´Â, ³¯Áö ¸øÇÏ´Â µüÁ¤¹ú·¹(¿¹¸¦µé¾î »ç½¿¹ú·¹°úÀÇ ¹Ù±¸¹Ì)µµ ¸¹Àº Á¾·ù°¡ ÀÖ½À´Ï´Ù. ÀÌµé ¸ðµç »ç·Ê´Â À¯±âüÀÇ ¿¹»ó ¼±Á¶µé¿¡°Ô À¯ÀÍÀÌ µÇ¾ú´ø ±â´É°ú ±¸Á¶·Î ¼³¸íÇÒ ¼ö ÀÖ½À´Ï´Ù (Futuyma 1998, pp. 122-123).
¾î¶°ÇÑ À¯±âüµµ ±×µéÀÇ ¼±Á¶ÁßÀÇ Çϳª°¡, ±â´ÉÀ» °¡Áö°í ÀÖ´ø ±¸Á¶°¡ ¾Æ´Ñ °ÍÀ» ÈçÀû±¸Á¶·Î °¡Áú ¼ö ¾ø½À´Ï´Ù. ±×·¯¹Ç·Î °¢°¢ÀÇ Á¾¿¡ ´ëÇØ¼ Ç¥ÁذèÅë¹ß»ý¼ö´Â ±â´ÉÇÑ ÈçÀûÀ̰ü°ú °¡´ÉÇÏÁö ¾ÊÀº ÈçÀû±â°ü¿¡ ´ëÇØ¼ ¾öû³ ¼öÀÇ ¿¹ÃøÀ» ÇÒ ¼ö ÀÖ½À´Ï´Ù.
ÈçÀû±â°üÀÌ ¾Æ´Ï¶ó, °øÀ¯Çϰí ÀÖ´Â ÆÄ»ý Ư¼º°ú ºÐÀÚ»ý¹°ÇÐÀû À¯ÀüÀÚ ¼¿ ÀÚ·á·Î °èÅë¹ß»ý¼ö ¹× ¿¹»ó °øÅëÁ¶»óÀÇ Æ¯¼ºÀ» °áÁ¤ÇÒ ¼ö ÀÖ½À´Ï´Ù. ±×·¯¹Ç·Î ¸¸¾à °øÅëÁ¶»óÀÌ °ÅÁþÀ̶ó¸é ÈçÀû ±â°üÀº ¾Æ¸¶µµ ÁøÈ·ÐÀûÀ¸·Î ¼³¸íÇÒ ¼ö ¾øÀ» °ÍÀÔ´Ï´Ù.
¿¹¸¦µé¾î °í·¡´Â À¯¼±, ŹÝ, ¾Æ·¡ÅÎÀÇ »À°¡ ÇϳªÀÎ °Í µîµîÀÇ ¸¹Àº ±âÁØ¿¡ ÀÇÇØ¼ Æ÷À¯·ù·Î ºÐ·ùµË´Ï´Ù. ¹ìµµ ÀÌ¿Í ºñ½ÁÇÏ°Ô ¿©·¯ °¡Áö ÆÄ»ý Ư¡À¸·Î ÀÎÇÏ¿© ÆÄÃæ·ù·Î ºÐ·ùµË´Ï´Ù. ±×·¯³ª ÀÌ·ÐÀûÀ¸·Î´Â ¹ìÀ̳ª °í·¡°¡ ¾î·ù·Î ºÐ·ùµÉ ¼ö ÀÖÀ» ¼öµµ ÀÖ½À´Ï´Ù. ¸¸¾à ±×·¸´Ù¸é ÈçÀû±â°üÀ¸·Î¼ ´Ù¸®³ª ¹ìÀÇ ÈçÀû±â°üÀûÀÎ °ñ¹ÝÀº ÁøÈ·ÐÀûÀ¸·Î ¸»µµ ¾ÊµÇ´Â °ÍÀÌ¸ç °øÅëÁ¶»ó ÁÖÀå°ú Àϰü¼ºÀÌ ¾ø¾îÁý´Ï´Ù.
¿ì¸®´Â ¾î¶°ÇÑ ¾ç¼·ù, Á¶·ù, ÆÄÃæ·ù¿¡¼µµ ŹÝÀ̳ª ÈçÀû±â°üÀûÀÎ Á¥²ÀÁö¸¦ ¹ß°ßÇÏÁö ¸øÇÒ °ÍÀÔ´Ï´Ù. ¾î¶°ÇÑ Æ÷À¯·ùµµ ÈçÀû±â°üÀûÀÎ ³¯°³¸¦ ¹ß°ßÇÒ ¼ö ¾øÀ» °ÍÀÔ´Ï´Ù(ÇÏÁö¸¸ ±×µéÀº ÈçÀû±â°ü ²¿¸®¸¦ °¡Áú ¼ö ÀÖ½À´Ï´Ù. Àΰ£Ã³·³). ¿ì¸®´Â ÈçÀû±â°ü ôÃ߸¦ °¡Áø °ïÃæÀ» ¹ß°ßÇÏÁö ¸øÇÒ °ÍÀÔ´Ï´Ù.
ÀÌ ¿¹ÃøÀº, ÈçÀû±â°üÀ̶ó°í »ý°¢µÇ¾ú´ø ±¸Á¶°¡ ¾î¶°ÇÑ ±â´ÉÀ» °¡Áö°í ÀÖ´Ù´Â °ÍÀ¸·Î ºÎÁ¤µÇÁö ¾Ê½À´Ï´Ù. ÀÌ·¯ÇÑ Çö»óÀÌ ÀϾ¸é ÀÌ ±¸Á¶´Â ´ÜÁö ¿¹Ãø 3.1¿¡¼ ´Ù·ç´Â »óµ¿±â°üÀÌ µÇ´Â °ÍÀ̰ųª, ȤÀº ¿¹Ãø 3.5¿¡¼ ´Ù·ç´Â ºÒÃæºÐÇÑ ¼³°èÀÇ »ç·Ê°¡ µÉ °ÍÀÔ´Ï´Ù. ÀϺΠ¹ÝÁøÈ·Ð ÀúÀÚµéÀº °úÇÐÀûÀ¸·Î³ª ½ÅÇÐÀûÀ¸·Î ¾î¶°ÇÑ ±¸Á¶°¡ ±â´ÉÀÌ ÀüÇô ¾ø´Ù´Â °ÍÀ» º¸ÀÌ´Â °ÍÀÌ ºÒ°¡´ÉÇÏ´Ù°í ÇÕ´Ï´Ù (e.g., see Ham et al. 1990; Scadding 1981). ÀÌ·¯ÇÑ Ç㹫ÁÖÀÇÀûÀΠöÇÐÀº ½Ç¿ëÀûÀÎ °úÇп¡´Â ¼³ÀÚ¸®°¡ ¾ø½À´Ï´Ù. ÀÌ·¯ÇÑ À߸øµÈ °á·ÐÀº °¡¼³À» °ËÁõÇϴµ¥ ºÎÁ¤ÀûÀÎ Áõ°Å°¡ »ç¿ëµÉ ¼ö ¾ø´Ù´Â À߸øµÈ ÀüÁ¦¿¡ ±Ù°ÅÇϰí ÀÖ´Â °ÍÀÔ´Ï´Ù. ±×·¯³ª, ºÎÁ¤ÀûÀÎ Áõ°Å´Â ¸¸¾à ÀûÀýÇÑ ½ÇÇèÀûÀÎ ´ëÁ¶±¸°¡ ÀÖ¾ú´Ù¸é ¹Þ¾Æµé¿©Áö´Â °ÍÀÔ´Ï´Ù. ¹°¸®Çп¡¼ ÀϾ ¼ö ÀÖ´Â À̰Ͱú ºñ½ÁÇÑ ´ÙÀ½°ú °°Àº °ÍÀ» »ý°¢ÇÏ¸é ºÎÁ¤ÀûÀÎ Áõ°Åµµ ºÐ¸íÈ÷ ¾µ¸ð°¡ ÀÖ´Â °ÍÀÔ´Ï´Ù. ¸¸¾à ¾î¶² ±¸Á¶°¡ ±â´ÉÀÌ ÀüÇô ¾ø´Ù´Â °ÍÀ» Áõ¸íÇÏ´Â °ÍÀÌ ºÒ°¡´ÉÇÏ´Ù¸é, °°Àº ÀÌÀ¯·Î ÁÖ¾îÁø ¾î¶² ¿ø¼Ò°¡ ¹æ»ç´ÉÀÌ ¾ø´Ù´Â °ÍÀ» Áõ¸íÇÏ´Â °ÍÀÌ ºÒ°¡´ÉÇÒ °ÍÀÔ´Ï´Ù. ±×·¯³ª ¹°¸®Çп¡¼´Â ³³-207ÀÌ ¹æ»ç´ÉÀÌ ¾ø´Ù´Â °ÍÀº ¾ÆÁÖ Àß È®¸³µÇ¾ú½À´Ï´Ù. À̰ÍÀº ¿¹¸¦µé¾î ³³-207¿¡¼´Â ¹æ»ç´ÉÀÌ °ËÁöµÇÁö ¾ÊÁö¸¸, ÀÎ-32¿Í °°Àº ´Ù¸¥ ¿ø¼Ò¿¡¼ ¹æ»ç´ÉÀ» °ËÁöÇÒ ¼ö Àֱ⠶§¹®ÀÔ´Ï´Ù. ¹°¸®Çп¡¼ ÀÎ-32´Â ¾ç¼º´ëÁ¶±¸À̸ç À̰ÍÀº ³³-207¿¡¼ ¾òÀº negative evidence¿¡¼ »ç¿ëÇϱâ À§ÇØ ÇÊ¿äÇÕ´Ï´Ù. ¸¶Âù°¡Áö·Î ÁÖ¾îÁø ±¸Á¶°¡ ±â´ÉÀÌ ¾ø´Ù´Â °ÍÀº, ÀÌ¿Í µ¿½Ã¿¡ °°Àº ȯ°æ¿¡¼ ºÐ¸íÈ÷ À¯¿ëÇÏ°Ô º¸ÀÌ´Â ´Ù¸¥ Á¾ÀÇ ±¸Á¶¿¡¼ À¯ÀÍÇÑ ±â´ÉÀ» ¹ß°ßÇÒ ¼ö ÀÖÀ» ¶§ ¹àÈú ¼ö ÀÖ½À´Ï´Ù.
ÇØºÎÇÐÀû °Ý¼¼À¯ÀüÀº ÈçÀû±â°ü°ú °³³äÀûÀ¸·Î ¸Å¿ì °ü·ÃµÇ¾î ÀÖ½À´Ï´Ù. ÁøÈ·ÐÀûÀ¸·Î ¸Õ Á¶»óÀº °¡Áö°í ÀÖ¾úÀ¸³ª, °¡±î¿î Á¶»ó¿¡¼´Â ¹ß°ßµÇÁö ¾Ê´Â ÀÒ¾î ¹ö¸° Ư¡ÀÌ ´Ù½Ã ³ªÅ¸³ª´Â °ÍÀ» °Ý¼¼À¯ÀüÀ̶ó°í ÇÕ´Ï´Ù. °Ý¼¼À¯Àü¿¡´Â ´ÙÀ½°ú °°Àº ¸î°¡Áö ±âº»ÀûÀÎ ¿ä¼Ò°¡ ÀÖ½À´Ï´Ù. (1) ¼ºÀα⿡ Á¸ÀçÇÑ´Ù. 2) ºÎ¸ð³ª °¡±î¿î Á¶»ó¿¡¼´Â º¸ÀÌÁö ¾Ê´Â´Ù. 3) Áý´Ü³»¿¡¼ ¸Å¿ì Èñ±ÍÇÏ´Ù(Hall 1984). ¹°·Ð ÁøÈ·ÐÀûÀ¸·Î ¹Ù¶óº¸Áö ¾Ê´Â´Ù¸é ¿ì¸®´Â °Ý¼¼À¯ÀüÀÌ ¸Õ Á¶»óÀÌ °¡Áö°í ÀÖ¾úÀ¸³ª ÃÖ±Ù Á¶»óÀº ÀÒ¾î ¹ö¸° °ÍÀ̶ó°í ¸» ÇÒ ¼ö´Â ¾ø½À´Ï´Ù. ±×·¯¹Ç·Î ¿ì¸®´Â ¿©±â¿¡ ÁÖ·Î °Ý¼¼À¯ÀüÀûÀÎ ±¸Á¶ÀÇ °¡´É¼ºÀÌ ÀÖ´Â °Í, Áï ÀÚ½ÅÀÌ ¼ÓÇÑ »ý¹°±º(taxa)¿¡¼ º¼ ¼ö ¾ø´Â Ư¡À» °¡Áø °Í¸¸À» ÁÖ·Î °ü½ÉÀ» °¡Áú °ÍÀÔ´Ï´Ù. °¡»óÀûÀÎ »ç·Ê·Î¼ ¸¸¾à µ¹¿¬º¯ÀÌ ¸»ÀÌ ¿ì¿¬È÷ ¾Æ°¡¹Ì¸¦ °¡Áø´Ù¸é À̰ÍÀº °Ý¼¼À¯ÀüÀÇ °¡´É¼ºÀÌ ÀÖ½À´Ï´Ù. ¿Ö³ÄÇϸé, ¾Æ°¡¹Ì´Â ¸»ÀÌ ¼ÓÇÑ »ý¹°±ºÀÇ Æ¯Â¡ÀÌ ¾Æ´Ï±â ¶§¹®ÀÔ´Ï´Ù. ¹ß»ýÇÐÀû ÀÌÀ¯·Î, Á¾Á¾ °øÅëÁ¶»óÀ» °¡Áø Èļյ鿡°Ô¼ °¡²û °Ý¼¼À¯ÀüÀÌ ³ªÅ¸³ª´Â °ÍÀ¸·Î ¿¹ÃøµË´Ï´Ù(Hall 1984; Hall 1995).
ÈçÀû±â°ü°ú ¸¶Âù°¡Áö·Î, ¸¸¾à ±¸Á¶³ª ±â´ÉÀÌ Á¶»ó°ú ÈÄ¼Õ °èº¸Áß°£¿¡ »ç·ÁÁ³´Ù¸é ¾î¶°ÇÑ À¯±âüµµ Á¶»óÀÌ °¡Áø ÀûÀÌ ¾ø´Â °Ý¼¼À¯ÀüÀûÀÎ ±¸Á¶¸¦ °¡Áú ¼ö ¾ø½À´Ï´Ù. ±×·¯¹Ç·Î °¢ Á¾¿¡ ´ëÇØ¼ Ç¥ÁذèÅë¹ß»ý¼ö´Â ¾î¶² ÁÖ¾îÁø Á¾¿¡ ´ëÇÞ ¾öû³ª°Ô ¸¹Àº ¿¹»ó °Ý¼¼À¯Àü°ú ºÒ°¡´ÉÇÑ °Ý¼¼À¯ÀüÀ» ¿¹ÃøÇÒ ¼ö ÀÖ½À´Ï´Ù.
°¡Àå Àß ¾Ë·ÁÁø °Ý¼¼À¯ÀüÀº °í·¡¿¡¼ ¹ß°ßµË´Ï´Ù. Ç¥ÁذèÅë¹ß»ý¼ö¿¡¼´Â °í·¡´Â µÞ¹ßÀ» °¡Áø À°»ó Æ÷À¯·ù¿¡¼ À¯·¡Çß½À´Ï´Ù. ±×·¯¹Ç·Î ¿ì¸®´Â °í·¡ÀÇ µ¹¿¬º¯ÀÌÁß¿¡¼ ¾ÆÁÖ µå¹É °Ô µÞ´Ù¸®¸¦ °¡Áø °ÍÀÌ ÀÖÀ» ¼ö ÀÖ´Ù°í ±â´ëÇÒ ¼ö ÀÖ½À´Ï´Ù. »ç½Ç»ó, ¾ß»ýÀÇ °í·¡¿¡°Ô¼ ÈçÀû±â°üÀûÀÌ°í °Ý¼¼À¯ÀüÀûÀÎ µÞ´Ù¸®¸¦ °¡Áø ¸¹Àº »ç·Ê°¡ ¹ß°ßµÈ »ç·Ê°¡ ÀÖ½À´Ï´Ù(for reviews see Berzin 1972, pp. 65-67 and Hall 1984, pp. 90-93). µÞ¹ßÀº ¼ö¿°°í·¡(Sleptsov 1939), Ȥµî°í·¡(Andrews 1921) ¹× ¸¹Àº ÇâÀ¯°í·¡(Abel 1908; Berzin 1972, p. 66; Nemoto 1963; Ogawa and Kamiya 1957; Zembskii and Berzin 1961) Á¾¿¡¼ ¹ß°ßµÇ¾ú½À´Ï´Ù. ´ëºÎºÐÀÇ »ç·Ê¿¡¼ ÀÌ °í·¡µéÀº ´ëÅð°ñ, Á¤°ÀÌ»À, ¹× ºñ°ñ(fibulae)À» °¡Áö°í ÀÖ¾úÁö¸¸ ÀϺδ ¿ÏÀüÇÑ ¹ß°¡¶ôÀ» °¡Áø ¹ßÀÌ Àֱ⵵ Çß½À´Ï´Ù.
°Ý¼¼À¯Àü¿¡´Â (1)µå¹É°Ô, ¸»¿¡¼ °í´ëÀÇ ¸ÞÁ¶È÷Ǫ½º³ª ¸Þ¸®Ä¡Çª½º¿¡¼ º¼ ¼ö ÀÖ´Â 2¹øÂ° ȤÀº 4¹øÂ° ¹ß°¡¶ôÀÌ Çü¼ºµÇ´Â °Í, (2) ¿¬ÀÛ·ù»õ¿Í Âü»õ¿¡¼ ³ªÅ¸³ª´Â °Ý¼¼À¯ÀüÀûÀÎ ³ÐÀû´Ù¸® ±ÙÀ°, (3)°³ÀÇ ¼³°ñ ±ÙÀ°, (4) Áý°Ô¹ú·¡ÀÇ ³¯°³(º¸ÅëÀº ³¯°³°¡ ¾øÀ½) (5) »õÀÇ °Ý¼¼À¯ÀüÀûÀÎ ºñ°ñ(ºñ°ñÀº Á¤»óÀûÀ¸·Î´Â ±ØÈ÷ ÀÛÀ½), (6) ±â´ÏÇȰú »ì¶ó¸¸´õÀÇ ¿©ºÐÀÇ ¹ß°¡¶ô ¹× (7)Àΰ£ÀÇ ´Ù¾çÇÑ °Ý¼¼À¯ÀüÀûÀΠƯ¡(±×Áß Çϳª¸¦ ´ÙÀ½¿¡ ÀÚ¼¼È÷ ¼³¸íÇÒ °ÍÀÔ´Ï´Ù.)¸¦ Æ÷ÇÔÇÑ ´Ù¾çÇÑ »ç·ÊµéÀÌ ÀÖ½À´Ï´Ù(Hall 1984).
![]() ±×¸² 2.2.1. 6¼¼ ¿©¾Æ¿¡°Ô¼ ¹ß°ßµÈ °Ý¼¼À¯ÀüÀûÀÎ ²¿¸®ÀÇ X-¼± ¿µ»ó A radiogram of the sacral region of a six-year old girl with an atavistic tail. The tail was perfectly midline and protruded form the lower back as a soft appendage. The five normal sacral vertebrae are indicated in light blue and numbered; the three coccygeal tail vertebrae are indicated in light yellow. The entire coccyx (usually three or four tiny fused vertebrae) is normally the same size as the fifth sacral vertebrae. In this same study, the surgeons reported two other cases of an atavistic human tail, one with three tail vertebrae, one with five. All were benign, and only one was surgically "corrected" for cosmetic reasons (image reproduced from Bar-Maor et al. 1980, Figure 3.) |
ÀÇÇÐÀûÀÎ °ü½É ¶§¹®¿¡ Àΰ£Àº °¡Àå Æ¯¼ºÀÌ Àß ¾Ë·ÁÁ® ÀÖÀ¸¸ç ¸¹Àº ¹ß»ý»óÀÇ ºñÁ¤»ó Çö»óÀÌ ¾Ë·ÁÁ³½À´Ï´Ù. ´Ù¸¥ Æ÷À¯·ù¿Í ÇÔ²² °øÅë À¯ÀüÀûÀÎ À¯»êÀ» ¹Ý¿µÇÏ´Â Àΰ£ÀÇ ¸î¸î °Ý¼¼À¯ÀüÀÌ ÀÖ½À´Ï´Ù. °¡Àå ³î¶ó¿î °Í ÁßÀÇ Çϳª´Â ¸Å¿ì µå¹È "ÁøÂ¥ Àΰ£ ²¿¸®(ÀϹÝÀûÀ¸·Î "¹Ì°ñ °úÁ¤", "¹Ì°ñ µ¹Ãâ", "²¿¸® µ¡µ¹±â", "ÈçÀû±â°ü ²¿¸®"¶ó°í ºÒ¸³´Ï´Ù.)ÀÇ Á¸ÀçÀÔ´Ï´Ù. 100°Ç ÀÌ»óÀÇ Àΰ£²¿¸®°¡ ÀÇÇÐ ¹®Çå¿¡ Àß º¸°íµÇ¾ú½À´Ï´Ù. Àß ¹®¼ÈµÈ »ç·ÊÁß¿¡ ÀÇÇÐÀûÀ¸·Î "°¡Â¥-²¿¸®"·Î ¾Ë·ÁÁø °ÍÀº 1/3 ÀÌÇÏÀÔ´Ï´Ù(Dao and Netsky 1984; Dubrow et al. 1988). °¡Â¥ ²¿¸®´Â ÁøÂ¥ ²¿¸®°¡ ¾Æ´Õ´Ï´Ù. À̵éÀº ´ÜÁö ²¿¸®ÂÊ ºÎºÐ¿¡¼ ¿ì¿¬È÷ ¹ß°ßµÇ´Â ´Ù¾çÇÑ ÇüÅÂÀÇ ´Ü¼øÇÑ º´¼Ò¿¡ ºÒ°úÇÒ »ÓÀÔ´Ï´Ù. Á¾Á¾ ôÁÖ(ô±ñº), ¹Ì°ñ(coccyx) ¹× ´Ù¾çÇÑ ±âÇü°ú °ü·ÃµÇ¾î ÀÖ½À´Ï´Ù. ÀÌ¿Í ¹Ý´ë·Î, ÁøÁ¤ÇÑ °Ý¼¼À¯ÀüÀûÀÎ Àΰ£ÀÇ ²¿¸®´Â Àΰ£ÀÇ ÅÂ¾Æ ¹ß´Þ°úÁ¤¿¡¼ ¹ß°ßµÇ´Â ¹è¾ÆÀÇ ²¿¸®ÀÇ °¡Àå ³¡ºÎºÐ¿¡¼ ¹ß´ÞµÇ¸ç(Figure 2.3.1 ¹×, Á¤»óÀûÀÎ Àΰ£ ¹è¾ÆÀÇ ²¿¸®¿¡ °üÇÑ ¾Æ·¡ÀÇ Åä·Ð ; Belzberg et al. 1991; Dao and Netsky 1984), ±×¸®°í À̰ÍÀÌ ÀϹÝÀûÀ¸·Î ÀÚ¿¬¿¡¼ Å« ºÒÀÌÀÍÀÌ ¾ø½À´Ï´Ù(Dubrow et al. 1988; Spiegelmann et al. 1985). ÁøÁ¤ÇÑ Àΰ£ÀÇ ²¿¸®´Â Áö¹æÁ¶Á÷, ¿¬°áÁ¶Á÷, Áß°£¿¡ ±æ°Ô ¹è¿µÈ °¡·Î¹«´Ì±Ù, Ç÷°ü, ½Å°æ¼¶À¯, ½Å°æÀý ¼¼Æ÷µé, ¹× Ư¼öÈµÈ ¾Ð·Â °¨Áö ½Å°æ ±â°üÀÇ º¹ÀâÇÑ ¹è¿ÀÌ Æ¯Â¡ÀÔ´Ï´Ù. À̰Ϳ¡´Â ÀϹÝÀûÀ¸·Î ¸ð³¶ÀÌ ÃæºÐÇϰí, ÇÇÁö¼±ÀÌ ÀÖ´Â ÇǺηΠµ¤Çô ÀÖ½À´Ï´Ù(Dao and Netsky 1984; Dubrow et al. 1988; Spiegelmann et al. 1985). ÁøÁ¤ÇÑ Àΰ£ÀÇ ²¿¸®´Â 1ÀÎÄ¡¿¡¼ 5ÀÎÄ¡ ±æÀÌ¿¡ À̸£°í(½Å»ý¾Æ) À̰ÍÀ» ¿òÁ÷À̰í, ´Ù¸¥ °Í¿¡ Á¢Ã˽Ãų ¼ö ÀÖ½À´Ï´Ù (Baruchin et al. 1983; Dao and Netsky 1984; Lundberg et al. 1962). ºñ·Ï Àΰ£ÀÇ ²¿¸®°¡ ÀϹÝÀûÀ¸·Î »À´ë±¸Á¶(ÀϺΠÀÇÇÐ³í¹®¿¡¼´Â ÁøÁ¤ÇÑ ²¿¸®´Â ÀüÇô ôÃß°¡ ¾ø´Ù°í ÁÖÀåÇÕ´Ï´Ù.)°¡ ¾øÁö¸¸ ¸î¸î Àΰ£ÀÇ ²¿¸®´Â ¿¬°ñ°ú 5°³±îÁö µÇ±âµµ ÇÏ´Â Àß ¹ß´ÞµÇ°í, ºÐ¸íÇÑ Ã´Ãß»À°¡ ¹ß°ßµÇ±âµµ ÇÕ´Ï´Ù(±×¸² 2.2.1; Bar-Maor et al. 1980; Dao and Netsky 1984; Fara 1977; Sugamata et al. 1988). ±×·¯³ª ¹Ì°ñ ôÃß´Â Æ÷À¯·ù ²¿¸®¿¡ ²À ÇÊ¿äÇÑ ºÎºÐÀÌ ¾Æ´Õ´Ï´Ù. ÀÇÇй®Çå¿¡ ÀÚÁÖ º¸°íµÇ´Â °Í°ú´Â ´Þ¸®, ¸¶Ä«Ä« ½Ç¹Ù´©½º(Macca sylvanus) "¹Ù¹Ù¸® À¯Àοø(Barbary ape)"ÀÇ 2ÀÎÄ¡ ±æÀÌÀÇ ÈçÀû±â°ü°°Àº ²¿¸®¿¡¼ º¸µíÀÌ, ôÃß»À°¡ ¾ø´Â À¯ÀοøÀÇ ²¿¸® »ç·Ê°¡ ÃÖ¼ÒÇÑ 1°Ç ÀÌ»ó ¾Ë·ÁÁ³½À´Ï´Ù(Hill 1974, p. 616; Hooten 1947, p. 23). ÁøÁ¤ÇÑ Àΰ£ÀÇ ²¿¸®´Â À¯ÀüµÇ´Â °æ¿ì°¡ ±ØÈ÷ µå¹ÉÁö¸¸ °¡Á·»ç¿¡¼ ³ªÅ¸³ª´Â °æ¿ì°¡ ÀÖ½À´Ï´Ù(Dao and Netsky 1984; Ikpeze and Onuigbo 1999; Standfast 1992; Touraine 1955). ´Ù¸¥ °Ý¼¼À¯ÀüÀûÀÎ ±¸Á¶Ã³·³, Àϰ£ÀÇ ²¿¸®´Â somatic ȤÀº germlineÀÇ µ¹¿¬º¯À̰¡ ÀϾ¼ Àΰ£ °Ô³ð¿¡ º¸Á¸µÇ°í ÀÖ´Â, ¼û°ÜÁø ¹ß»ý°úÁ¤ÀÌ ´Ù½Ã Ȱ¼ºÀ» ¾ò¾ú±â ¶§¹®ÀÏ °ÍÀÔ´Ï´Ù(Dao and Netsky 1984; Hall 1984; Hall 1995).
ÁøÁ¤ÇÑ Àΰ£ÀÇ ²¿¸®ÀÇ Á¸Àç°¡ ¸¹Àº Á¾±³ÀûÀÎ ÀÌÀ¯·Î ÀÚ±ØÀ» ¹ÞÀº ¹ÝÁøÈ·ÐÀÚµé ¿¹¸¦µé¾î µà¾È ±â½¬ °°Àº »ç¶÷µé¿¡°Õ ºÒÇàÈ÷µµ »ó´çÇÑ Ãæ°ÝÀ̾ú´Ù´Â °ÍÀ» ÁöÀûÇÒ Çʿ䰡 ÀÖÀ» °Í °°½À´Ï´Ù. µà¾È±â½¬´Â ÀÚÁÖ ÀοëµÇ´Â "ÁøÈ¿Í Àΰ£ÀÇ ²¿¸®"¶ó´Â ±ÛÀ» ½è½À´Ï´Ù(Gish 1983; Menton 1994; ReMine 1982). ƯÁ¤ ´ÜÀÏ»ç·Ê¸¸ÀÇ ¿¬±¸(Ledley 1982)¿¡ ±Ù°ÅÇÏ¿© ÀúÀÚµéÀº ¾ûÅ͸®·Î °Ý¼¼À¯ÀüÀûÀÎ Àΰ£ÀÇ ²¿¸®´Â "´ÜÁö ºñÁ¤»óÀûÀÎ ±âÇüÀ¸·Î ¾î¶² »ó»óÀÇ Á¶»óÀÇ »óÅ·εµ ÃßÀûÇÒ ¼ö ¾ø´Ù"°í À߸ø °á·Ð ³»·È½À´Ï´Ù(Gish 1983). ±×·¯³ª, ÀÌµé ³íÁõÀº °¡Â¥-²¿¸®¿¡ ´ëÇÑ °ÍÀÌÁö, ÁøÂ¥²¿¸®¿¡ ´ëÇÑ °ÍÀÌ ¾Æ´Õ´Ï´Ù. ¿Ö³ÄÇϸé, ÁøÂ¥²¿¸®´Â, ±ÙÀ°, Ç÷°ü, , ôÃß, ¹× ¿¬°ñÀÇ º¹ÀâÇÑ ±¸Á¶À̸ç(Bar-Maor et al. 1980; Dao and Netsky 1984; Fara 1977; Sugamata et al. 1988), À̰ÍÀº ¿òÁ÷À̰í, Á¢ÃËÇÒ ¼ö ÀÖÀ¸¸ç, Á¾Á¾ À¯ÀüµÇ±â ¶§¹®ÀÔ´Ï´Ù(Dao and Netsky 1984; Ikpeze and Onuigbo 1999; Standfast 1992; Touraine 1955). °Ô´Ù°¡, ±â½¬, ¸àÅæ ¹× ·¹¹Î ¸ðµÎ´Â Àΰ£ÀÇ ÈçÀû±â°ü ²¿¸®°¡ ôÃß»À°¡ ¾ø´Ù¸é ÁøÁ¤ÇÑ ²¿¸®°¡ ¾Æ´Ï¶ó°í ÁÖÀåÇßÀ¸¸¸, À̰ÍÀº ¾Õ¼ ¸¶Ä«Ä« ½Ç¹Ù´©½º°¡ ôÃß»À°¡ ¾ø´Â »ì·Î¸¸ ÀÌ·ç¾îÁø ²¿¸®¸¦ °¡Á³´Ù´Â °ÍÀ» »ý°¢Çϸé À߸øµÈ ÁÖÀåÀÔ´Ï´Ù(Hill 1974, p. 616; Hooten 1947, p. 23).
¾ÕÀÇ ÈçÀû±â°üÀûÀÎ ±¸Á¶¿Í ±âº»ÀûÀ¸·Î µ¿ÀÏÇÕ´Ï´Ù.
ÈçÀû±â°üÀûÀΠƯ¡Àº ºÐÀÚ¼öÁØ¿¡¼µµ ¹ß°ßµÉ ¼ö ÀÖ½À´Ï´Ù. Àΰ£Àº ¾Æ½ºÄÚºò»ê(ºñŸ¹Î C)À» ÇÕ¼ºÇÏ´Â ´É·ÂÀÌ ¾øÀ¸¸ç, ÀÌ ºÒÇàÇÑ °á°ú´Â ¿µÇâ°áÇÌÀÌ ÀϾ´Â °æ¿ì ±«Ç÷º´ÀÌ »ý±â°Ô ÇÒ ¼ö ÀÖ½À´Ï´Ù. ±×·¯³ª Àΰ£ÀÇ ¿¹»óÁ¶»óÀº ÀÌ ±â´ÉÀÌ À̾ú½À´Ï´Ù. (¿µÀå·ù¿Í ±â´ÏÇÈÀ» Á¦¿ÜÇÑ ´Ù¸¥ ´ëºÎºÐÀÇ µ¿¹°Ã³·³) ±×·¯¹Ç·Î ¿ì¸®´Â Àΰ£°ú ´Ù¸¥ ¿µÀå·ù¿Í ±â´ÏÇÈÀÌ ÀÌ ÀÒ¾î ¹ö¸° ±â´É¿¡ ´ëÇÑ ºÐÀÚ¼öÁØÀÇ ÈçÀû Áõ°Å¸¦ °¡Áö°í ÀÖÀ» °ÍÀ» ¿¹ÃøÇÒ ¼ö ÀÖ½À´Ï´Ù(nota bene, ÀÌ ¿¹ÃøÀº ´Ï½ÃŰ¹Ì¿Í ´Ù¸¥ °úÇÐÀڵ鿡 ÀÇÇØ¼ ¸í½ÃÀûÀ¸·Î Á¦½ÃµÇ¾ú°í, ¾Æ·¡¿¡ ¼³¸íÇÑ ¿¬±¸¸¦ ÇÏ°Ô µÇ´Â ¿øµ¿·ÂÀÌ µÇ¾ú½À´Ï´Ù.) (Nishikimi et al. 1992; Nishikimi et al. 1994).
ÃÖ±Ù¿¡, ºñŸ¹Î C »ýÇÕ¼º¿¡ ÇÊ¿äÇÑ À¯ÀüÀÚÀÎ L-gulano-g-lactone oxidase À¯ÀüÀÚ°¡ Àΰ£°ú ±â´ÏÇÈ¿¡°Ô¼ ¹ß°ßµÇ¾ú½À´Ï´Ù(Nishikimi et al. 1992; Nishikimi et al. 1994). À̰ÍÀº °¡À¯ÀüÀÚ·Î Á¸ÀçÇϸç À¯ÀüÀÚ´Â ÀÖÁö¸¸ ±â´ÉÀº ¾ø¾ú½À´Ï´Ù(°¡À¯ÀüÀÚ¿¡ ´ëÇÑ °ÍÀº ¿¹Ãø 4.4¸¦ ÂüÁ¶ÇÏ½Ã±æ ¹Ù¶ø´Ï´Ù). »ç½Ç À̱ÛÀÌ Ã³À½ ¾²¿©Áø ÀÌÈÄ·Î ºñŸ¹Î C À¯ÀüÀÚ°¡ ÁøÈ·Ð¿¡¼ ¿¹ÃøÇÑ ´ë·Î ´Ù¸¥ ¿µÀå·ù¿¡¼µµ ¹ß°ßµÇ¾ú½À´Ï´Ù.¿ì¸®´Â ÀÌÁ¦ ÀÌ ÆÄ±«µÈ À¯ÀüÀÚ¸¦ ħÆÒÁö, ¿À¶û¿ìź, ¸¶Ä¬ ¿ø¼þÀÌ¿¡°Ô¼ ¹ß°ßÇß½À´Ï´Ù(Ohta and Nishikimi 1999). ±×¸®°í ¿¹Ãø´ë·Î, ±â´ÉÀÌ ¾ø´Â ÀÌ °¡À¯ÀüÀÚ´Â Àΰ£°ú ħÆÒÁö°¡ °¡Àå ºñ½ÁÇϰí, ±× ´ÙÀ½ÀÌ Àΰ£°ú ¿À¶û¿ìź, ±×¸®°í Àαä°ú ¸¶Ä¬ ¿ø¼þÀ̰¡ °¡Àå Â÷À̰¡ ÄÆÀ¸¸ç À̰ÍÀº ÁøÈ·Ð¿¡¼ ¿¹ÃøÇÑ ´ë·Î Á¤È®ÇÏ°Ô ¸Â´Â °ÍÀÔ´Ï´Ù. °Ô´Ù°¡ À̵鿡°Ô ÃàÀûµÈ À¯ÀüÀÚÀÇ µ¹¿¬º¯ÀÌ´Â, °¡À¯ÀüÀÚ¿Í °°Àº Áß¼ºÀûÀÎ DNAÀÇ ±âº» µ¹¿¬º¯ÀÌÀ²¿¡ ´ëÇÑ ¿¹Ãø°ú Á¤È®ÇÏ°Ô ÀÏÄ¡Çß½À´Ï´Ù(Ohta and Nishikimi 1999).
ÈçÀû±â°üÀûÀÎ Àΰ£ À¯ÀüÀÚÀÇ »ç·Ê´Â, ´ÙÁß Èİ¢¹°Áú ¼ö¿ëü À¯ÀüÀÚ(Rouquier et al. 2000), RT6 ´Ü¹éÁú À¯ÀüÀÚ (Haag et al. 1994), galatosyl transferaseÀ¯ÀüÀÚ(Galili and Swanson 1991)¿Í tyrosinase °ü·Ã À¯ÀüÀÚ(TYRL)(Oetting et al. 1993)À» Æ÷ÇÔÇÑ ¿©·¯ °¡Áö°¡ ÀÖ½À´Ï´Ù.
¿ì¸®ÀÇ odorant receptor(OR)À¯ÀüÀÚ´Â ÇöÀç´Â ÀÒ¾î ¹ö¸° Èİ¢±â´É¿¡ °ü·ÃµÈ ´Ü¹éÁúÀÇ Á¤Àú¸¦ ÀúÀåÇß½À´Ï´Ù. ¿ì¸®ÀÇ ¿¹»ó Á¶»óÀº ´Ù¸¥ Æ÷À¯·ù¿Í ¸¶Âù°¡Áö·Î ¿ì¸®°¡ ÇöÀç °¡Áø °Íº¸´Ù ´õ ¹Î°¨ÇÑ Èİ¢±â´ÉÀ» °¡Áö°í ÀÖ¾ú½À´Ï´Ù. Àΰ£ÀÌ °¡Áö°í ÀÖ´Â 99% ÀÌ»óÀÇ Èİ¢ ¼ö¿ëü À¯ÀüÀÚ¸¦ °¡Áö°í ÀÖÀ¸¸ç, ÀÌÁß 70%´Â °¡À¯ÀüÀÚÀÔ´Ï´Ù. »ýÁ㳪 ¸¶¸ð¼Â°ú °°Àº ¸¹Àº ´Ù¸¥ Æ÷À¯·ù´Â ¿ì¸®°¡ °¡Áø °Í°ú µ¿ÀÏÇÑ OR À¯ÀüÀÚ¸¦ °¡Áö°í ÀÖÁö¸¸ ÀÌµé ¸ðµÎ´Â ¸ðµÎ ÀÛ¿ëÇÕ´Ï´Ù. ±Ø´ÜÀûÀÎ »ç·Ê´Â À°»óµ¿¹°ÀÇ ÈļÕÀÎ µ¹°í·¡·Î, À̵éÀº Èֹ߼º odorant¸¦ ³¿»õ ¸Ã¾Æ¾ßÇÒ Çʿ䰡 ´õ ÀÌ»ó ¾øÁö¸¸ ¾ÆÁ÷Àº ¸¹Àº OR À¯ÀüÀÚ°¡ Á¸ÀçÇϸç, À̵éÁß ÀüºÎ°¡ ±â´ÉÀÌ ¾ø½À´Ï´Ù. Áï ÀÌµé ¸ðµÎ °¡À¯ÀüÀÚÀÔ´Ï´Ù(Freitag et al. 1998).
RT6 ´Ü¹éÁúÀº ´Ù¸¥ ¿ÀÀ¯·ù¿¡¼´Â T ¸²ÇÁ±¸ÀÇ Ç¥¸é¿¡ ¹ßÇöµË´Ï´Ù¸¸, ¿ì¸®´Â ¹ßÇöµÇÁö ¾Ê½À´Ï´Ù. galatosyl transferase À¯ÀüÀÚ´Â ´Ù¸¥ µ¿¹°ÀÇ ¼¼Æ÷¸·¿¡¼ ¹ß°ßµÇ´Â ź¼öȹ°À» ¸¸µå´Â °Í°ú °ü·ÃµÇ¾îÀÖ½À´Ï´Ù. tyrosinase´Â ¸ðµç µ¿¹°ÀÇ ¸á¶ó´Ñ »ö¼Ò¿¡ °ü·ÃµÈ ÁÖµÈ È¿¼ÒÀÔ´Ï´Ù. TYRLÀº tyrosinaseÀÇ °¡ À¯ÀüÀÚÀÔ´Ï´Ù.
¿ì¸®´Â ÀÌ·¯ÇÑ À¯ÀüÀÚ¸¦ ´Ù¸¥ ¿µÀå·ù¿Í °øÀ¯Çϰí ÀÖ´Ù´Â °ÍÀ» ÁöÀûÇØ¾ß ÇÒ °ÍÀÔ´Ï´Ù. ±×¸®°í À̵é À¯ÀüÀÚ¸¦ ±â´ÉÀÌ »ó½ÇµÇµµ·Ï ¸¸µé¾ú´ø µ¹¿¬º¯À̵µ °øÀ¯ÇÕ´Ï´Ù. (ºñ±â´É¼º Ư¡À» °øÀ¯ÇÏ´Â °Í¿¡ ´ëÇØ¼´Â ¿¹Ãø 4.3-4.5 ÂüÁ¶Çϱ⠹ٶø´Ï´Ù.).
¸¸¾à ¿ì¸®°¡ L-gulano-g-lactone oxidase °¡À¯ÀüÀÚ È¤Àº ´Ù¸¥ À§¿¡ ¾ð±ÞÇÑ ÈçÀû À¯ÀüÀÚ¸¦ ¹ß°ßÇÏÁö ¸øÇÑ´Ù¸é ¸Å¿ì È¥¶õ½º·¯¿üÀ» °ÍÀÔ´Ï´Ù. °Ô´Ù°¡ ¿ì¸®´Â Àý´ë·Î ÈçÀû ¿±·Ïü À¯ÀüÀÚ¸¦ ±× ¾î¶°ÇÑ ÈÄ»ýµ¿¹° (¿¹¸¦µé¾î µ¿¹°)¿¡°Ô¼ ¹ß°ßÇÏÁö ¸øÇÒ °ÍÀ» ¿¹ÃøÇÒ ¼ö ÀÖ½À´Ï´Ù(Li 1997, pp. 284-286, 348-354).
¹è¾ÆÇаú ¹ß»ý »ý¹°ÇÐÀº ÁøÈ°æ·Î¿¡ ´ëÇÑ ¸Å·ÂÀûÀÎ ÅëÂûÀ» Á¦°øÇÕ´Ï´Ù. Á¾¿¡ ´ëÇÑ ºÐÁöÇÐÀû ÇüÅ ºÐ·ù´Â ÀϹÝÀûÀ¸·Î À¯±âü ¼ºÃ¼ÀÇ ÆÄ»ýƯ¡¿¡ ±Ù°Å¸¦ µÎ±â ¶§¹®¿¡, ¹è¾ßÇаú ¹ß»ýÇÐ ¿¬±¸´Â ÀüÇô µ¶¸³ÀûÀÎ Áõ°Å¸¦ Á¦°øÇÕ´Ï´Ù.
¿¡¸¥½ºÆ® ÇÙÄÌÀÇ »ý°¢Àº Ãʱ⠹è¾ßÇп¡ ¸¹Àº ¿µÇâÀ» ÁÖ¾úÀ¸³ª, ±×ÀÇ »ý°¢Àº Ä® ¿¡¸¥½ºÆ® Æù ¹Ù¿¡¸£¶ó´Â ±×ÀÇ °è½ÂÀÚ¿¡ ÀÇÇØ¼ ±³Ã¼µÇ¾ú½À´Ï´Ù. Æù ¹Ù¿¡¸£´Â °¢ ¹è¾ÆÀÇ ´Ü°è´Â ±×µé Á¶»óÀÇ ¹è¾ÆÀÇ »óÅÂ¿Í ´à¾ÒÀ» °ÍÀ̶ó°í Á¦¾ÈÇß½À´Ï´Ù(Âü°í·Î, ÇìÄÌÀº Á¶»óÀÇ ¼ºÀΰú ´à¾ÒÀ» °ÍÀ̶ó°í ¸»Çß½À´Ï´Ù.). À¯±âüÀÇ ¼ºÃ¼ÀÇ ÃÖÁ¾ ±¸Á¶´Â ´Ù¾çÇÑ ¹ß»ý°úÁ¤ÀÌ ÃàÀûµÈ °á°úÀ̹ǷΠÁ¾ÀÌ ÁøÈÇϱâ À§Çؼ´Â ¹ß»ý°úÁ¤¿¡ º¯È°¡ ÀÖ¾î¾ß¸¸ ÇÕ´Ï´Ù. ´ëÁøÈ·ÐÀûÀÎ °á·ÐÀº À¯±âüÀÇ ¹ß»ýÀº ±×µé Á¶»óÀÇ °³Ã¼¹ß»ýÀÇ º¯È¶ó´Â °ÍÀÔ´Ï´Ù(Futuyma 1998, pp. 652-653). Çö´ë ¹ß»ýÇÐÀÇ °Ý¾ðÀº ¿ÀÈ÷·Á ÇìÄÌÀÇ »ý¹°ÇÐÀû ¹ýÄ¢°ú´Â ¹Ý´ë·Î "°èÅë¹ß»ýÀÌ °³Ã¼¹ß»ýÀ» ¹Ýº¹ÇÏ´Â °Í"ÀÔ´Ï´Ù. ¿ùÅÍ °¡½ºÅÁÀº Á»´õ Á¤È®ÇÏ°Ô °³Ã¼¹ß»ýÀÌ °èÅë¹ß»ýÀ» ¸¸µç´Ù¶ó°í ¸»Çß½À´Ï´Ù. À̰ÍÀÌ ÀǹÌÇÏ´Â ¹Ù´Â ÇÑ À¯±âüÀÇ °³Ã¼¹ß»ý¿¡ ´ëÇØ¼ ¾Ë·ÁÁø Áö½ÄÀ¸·Î ¿ì¸®´Â È®½ÇÇÏ°Ô ¿ª»ç»óÀÇ °æ·Î¿¡¼ À¯±âüÀÇ ÁøÈ¿¡ ¹«¾ùÀÌ °ü·ÃµÇ¾ú´ÂÁö¸¦ ¿¹ÃøÇÒ ¼ö ÀÖ´Ù´Â °ÍÀÔ´Ï´Ù(Gilbert 1997, pp. 912-914). ±×·¯¹Ç·Î ¹è¾ÆÇÐÀº ÁøÈ¿¡ ´ëÇÑ È®ÀÎ Áõ°Åµé°ú ¿¹ÃøÀ» Á¦°øÇÕ´Ï´Ù.
¹è¾Æ¿¡ ´ëÇÑ ¿¬±¸¿¡¼ ¹ß»ý°úÁ¤ÀÇ ÆÄÃæ·ùÀÇ 2°³»À°¡ °á±¹ ¼º¼÷ ÆÄÃæ·ù ÅÎÀÇ quadrate¿Í articular°¡ µÇ´Â °ÍÀÌ ¾Ë·ÁÁ³½À´Ï´Ù(µ¶ÀÏÀÇ ¹è¾ÆÇÐÀÚÀÎ Ä® ¶óÀÌÇ츣Ʈ¿¡ ÀÇÇØ¼ 1837³âóÀ½ º¸°íµÇ¾ú½À´Ï´Ù.). ±×·¯³ª, Æ÷À¯·ùÀÇ À¯´ë·ù ¹è¾Æ¿¡¼ ÀÌ 2°³ÀÇ »À´Â ÅλÀ°¡ µÇ´Â °ÍÀÌ ¾Æ´Ï¶ó, Æ÷À¯·ùÀÇ ±Ó¼ÓÀÇ ¸ð·ç»À¿Í ¸ÁÄ¡»À°¡ µÇ¾ú½À´Ï´Ù. À̰ÍÀº À̵éÀÇ ÁøÈ°úÁ¤¿¡¼ Æ÷À¯·ùÀÇ ÁßÀÌÀÇ »ÀµéÀÌ ÆÄÃæ·ùÀÇ ÅλÀ¿¡¼ À¯·¡µÈ °ÍÀ» ³ªÅ¸³»°í ÀÖ½À´Ï´Ù(Gilbert 1997, pp. 894-896).
¶ÇÇÑ ÀÌ¿¡ µû¸¥, ÆÄÃæ·ùÀÇ ÅλÀ¿¡¼ Æ÷À¯·ùÀÇ ±Í·Î º¯ÈµÇ´Â °ÍÀ» ºÐ¸íÈ÷ º¸ÀÌ´Â ÀÏ·ÃÀÇ Áß°£È¼®Àº ¿ÏÀüÇÕ´Ï´Ù. (¿¹Ãø 1.4, »ç·Ê 2¿¡¼ ´Ù·é Á¾°£È¼®µé°ú ºñ±³Çϱ⠹ٶø´Ï´Ù.) (Carroll 1988, pp. 392-396; Futuyma 1998, pp. 146-151; Gould 1990; Kardong 2002, pp. 255-275).
À¯±âüÀÇ ÁøÈ»ç¸¦ ³ªÅ¸³»´Â ¼ö ¸¹Àº ´Ù¸¥ »ç·ÊµéÀÌ ÀÖ½À´Ï´Ù. ¹ß»ýÃÊ¿¡ Æ÷À¯·ù ¹è¾Æ´Â Àá½Ã Àεγ¶(pharyngeal pouches)ÀÌ ³ªÅ¸³ª¸ç, À̰ÍÀº ÇüÅÂÇÐÀûÀ¸·Î ¼öÁß Ã´Ãßµ¿¹°ÀÇ ¾Æ°¡¹Ì³¶(gill pouches)°ú ±¸ºÐÇÒ ¼ö ¾ø½À´Ï´Ù(Gilbert 1997, pp. 380, 382). ÀÌ ÁøÈ·ÐÀûÀÎ ¿À·¡µÈ À¯¹°Àº Æ÷À¯·ù Á¶»óÀÌ ÇѶ§ ¼öÁß ¾Æ¸¶±â È£ÈíÀ» Çϴ ôÃßµ¿¹° À̶ó´Â »ç½ÇÀ» ¹Ý¿µÇÕ´Ï´Ù. ÀÌ Àεγ¶Àº ¹°·Ð ¾Æ°¡¹Ì·Î ¹ß´ÞÇÏÁö ¾ÊÀ¸¸ç, ¾Æ°¡¹Ì·ÎºÎÅÍ ÁøÈµÈ À¯½ºÅ¸Å°¿À°ü, ÁßÀÌ, Æíµµ¼±, ºÎ°©»ó¼±, Èä¼±À¸·Î ¹ß»ýµË´Ï´Ù(Kardong 2002, pp. 52, 504, 581). µÎ ¾Æ°¡¹Ì »çÀÌÀÇ ±Ã(arches)Àº ¾Æ°¡¹Ì±Ã(branchial arches)À̶ó°í ºÒ¸®´Â µ¥ À̰ÍÀº ¹«¾Ç¾î¿¡ Á¸ÀçÇϸç, ÀÌ ¾Æ°¡¹Ì±ÃÀÇ ÀϺδ ³ªÁß¿¡ ÅλÀ·Î ÁøÈÇÏ°Ô µÇ¸ç, °á±¹ À̰ÍÀº ¾ÕÀÇ ¿¹Ãø 1.4 »ç·Ê 2¿¡¼ ¸»ÇßµíÀÌ ³»ÀÌÀÇ »À·Î ÁøÈÈ°Ô µÇ¾ú½À´Ï´Ù.
¹ì°ú ´Ù¸®¾ø´Â µµ¸Å¹ì (¿¹¸¦µé¾î slow worm)ÀÇ ¸¹Àº Á¾Àº óÀ½¿¡´Â µÞ¹ßµ¹±â(limb buds)°¡ žÆÀÇ ¹ß»ý°úÁ¤¿¡ ³ªÅ¸³ªÁö¸¸ ºÎÈÇϱâ ÀÌÀü¿¡ ´Ù½Ã ÀçÈí¼ö µË´Ï´Ù(Raynaud 1990; Raynaud and Kan 1992; Raynaud and Van den Elzen 1976). À¯»çÇÏ°Ô Çö´ëÀÇ ¼ºÀÎ °í·¡, µ¹°í·¡´Â , ¹× porpoises´Â µÞ´Ù¸®°¡ ¾ø½À´Ï´Ù. ±×·³¿¡µµ ºÒ±¸ÇÏ°í ´Ù¾çÇÑ ´Ù¸®»À, ½Å°æ, Ç÷°üÀ¸·Î µÞ´Ù¸®°¡ °í·¡·ùÀÇ Å¾ƿ¡ Àá½Ã ³ªÅ¸³ª°í Ãâ»ýÀü¿¡ Åðȵ˴ϴÙ(Amasaki et al. 1989; Sedmera et al. 1997). .
(¿ªÁÖ : ¿Ü±¹¿¡¼´Â °í·¡¸¦ ºÐ·ùÇÒ ¶§ °í·¡, µ¹°í·¡, porpoises·Î Å©°Ô ³ª´¹´Ï´Ù. ±¹³»¿¡¼´Â porpoises¸¦ µ¹°í·¡·Î ¹ø¿ªÇÏ¸é¼ °í·¡ÀÇ Á¾·ù¸¦ °í·¡¿Í µ¹°í·¡·Î¸¸ ºÐ·ùÇϴµ¥, ±× ÀÌÀ¯´Â porpoises°¡ Ư¡ÀÌ Àִٱ⠺¸´Ù´Â °ü½ÀÀûÀ̸ç, Â÷À̶ó°í´Â ¿ÀÁ÷ ÀÌ»¡ÀÌ ½ºÆäÀ̵å ÇüÀ¸·Î »ý±ä °Í»ÓÀ̱⠶§¹®ÀÔ´Ï´Ù.)
Àΰ£Àº ºÐ·ùÇÐÀڵ鿡 ÀÇÇØ À¯ÀοøÀ¸·Î ºÐ·ùµÇ¸ç À¯ÀοøÀº ²¿¸®°¡ ¾ø´Ù´Â ÆÄ»ý Ư¡À¸·Î Á¤Àǵ˴ϴÙ. ±×·¯³ª Àΰ£ ¹è¾Æ´Â óÀ½¿¡´Â ¹ß»ýÁß¿¡ ²¿¸®°¡ ³ªÅ¸³³´Ï´Ù. 4-5ÁÖ¿¡ Á¤»óÀûÀÎ Àΰ£ ¹è¾Æ´Â 10-12°³ÀÇ ¹ß»ýÁßÀÎ ²¿¸® ôÃß»À°¡ ³ªÅ¸³ª¸ç À̰ÍÀº Ç×¹® ºÎºÐÀ» ³Ñ¾î ´Ù¸®±îÁö È®ÀåµÇ¸ç Àüü ¹è¾Æ ±æÀÌÀÇ 10%¸¦ Â÷ÁöÇÕ´Ï´Ù(Fallon and Simandl 1978; Moore and Persaud 1998, pp. 91-100; Nievelstein et al. 1993). ¹è¾ÆÀÇ ²¿¸®´Â ¿©·¯ °¡Áö ¹ß»ýÁßÀΠôÃß»À»Ó¸¸ ¾Æ´Ï¶ó, 2Â÷ ½Å°æ°ü(ô¼ö), ô»ö, Áß°£¿±(mesenchyme)°ú tail gut°¡ Æ÷ÇÔµÈ ¸Å¿ì º¹ÀâÇÑ Á¶Á÷À¸·Î ÀÌ·ç¾îÁ® ÀÖ½À´Ï´Ù. ÀӽŠ8ÁÖ¸é, 6¹ø¿¡¼ 12¹ø ôÃß´Â ¼¼Æ÷ÀÇ »ç¸ê·Î ÀÎÇÏ¿© »ç¶óÁö°í 5,4 ¹øÂ° ²¿¸® ôÃß»À´Â °è¼Ó ÁÙ¾îµì´Ï´Ù. ¸¶Âù°¡Áö·Î, °ü·ÃµÈ ²¿¸® Á¶Á÷Àº ¶ÇÇÑ ¼¼Æ÷»ç¸êµÇ°í ÁÙ¾îµì´Ï´Ù. ±¤ÇÐÇö¹Ì°æ°ú ÀüÀÚ ÁÖ»ç Çö¹Ì°æÀ¸·Î ¹è¾ÆÀÇ Àΰ£ÀÇ ²¿¸®¿¡ ´ëÇÑ ¸î¸î ¼¼ºÎÀûÀÎ ºÐ¼®Àº Áװųª ÅðÈÇϴ žƲ¿¸®ÀÇ ¼¼Æ÷°¡ ´ë½Ä¼¼Æ÷¿¡ ÀÇÇØ¼ ¼·ÃëµÇ¾î ¼Òȵȴٴ °ÍÀ» º¸¿©ÁÖ¾ú½À´Ï´Ù. (´ë½Ä¼¼Æ÷´Â ¸é¿ª°ÔÀÇ, Ä¿´Ù¶õ ¹éÇ÷±¸ ¼¼Æ÷·Î ÀϹÝÀûÀ¸·Î ¹ÚÅ׸®¾Æ °°Àº ħÀÔ¼º º´¿ø¼º ±ÕÀ» ¼·ÃëÇϰųª ¼ÒÈÇÕ´Ï´Ù.)(Fallon and Simandl 1978; Nievelstein et al. 1993; Sapunar et al. 2001; Saraga-Babic et al. 1994; Saraga-Babic et al. 2002) »ç¶÷ ¼ºÀο¡°Ô¼ ²¿¸®´Â ÃÖÁ¾ÀûÀ¸·Î´Â, ´ÜÁö 4°³ÀÇ À¶ÇÕµÈ Ã´Ãß ÀÌ·ç¾îÁø ÀÛÀº»ÀÀÎ ¹Ì°ñ·Î ÁÙ¾îµé¸ç, À̰ÍÀº µÚ·Î µ¹ÃâµÇÁö ¸øÇÕ´Ï´Ù (Fallon and Simandl 1978; Sapunar et al. 2001) (±×¸² 2.4.1). Àΰ£ ¹è¾ÆÀÇ ²¿¸®°¡ ÁÙ¾îµå´Â °ÍÀº '´ÙÂ÷¿øÀûÀÎ Àΰ£ ¹è¾Æ Multi-dimensional Human Embryo)' »çÀÌÆ®¿¡¼ ȯ»óÀûÀÎ À̹ÌÁö·Î º¼ ¼ö ÀÖÀ¸¸ç, À̰÷¿¡¼´Â »ì¾ÆÀÖ´Â ¹è¾ÆÀÇ 3Â÷¿ø MRI ½ºÄµ »çÁøÀÌ ÀúÀåµÇ¾î ÀÖ½À´Ï´Ù.
Àΰ£¹è¾Æ ¼º¼÷µµ ¼öÁØÀº Ä«³×±â ´Ü°è·Î ³ª´¹´Ï´Ù. ¹è¾ÆÀÇ Ç×¹®µÚ ²¿¸®´Â Ä«³×±â ´Ü°è, 114, 15, ¹× 16¿¡¼ ¼±¸íÇÏ°Ô º¸ÀÔ´Ï´Ù. ±× »çÀÌÆ®´Â ¹è¾ÆÀÇ È¸ÀüÇÏ´Â ¿µ»óÀ» °¡Áö°í ÀÖÀ¸¸ç, ÀÌ ¿µ»óÀº ¼±¸íÇÏ°Ô Å¾ÆÀÇ 3Â÷¿ø µî°í¼±À» Àߺ¸¿©ÁÝ´Ï´Ù. ´ëºÎºÐÀÇ ´Ü°è°¡ ½Å°æ°üÀÌ °Á¶µÈ ¿µ»óÀ» °¡Áö°í ÀÖ½À´Ï´Ù. ƯÈ÷ Ãʱâ´Ü°è (¿¹¸¦µé¾î Ä«³×±â 14 ȤÀº 15 ´Ü°è)¸¦, ½Å°æ°üÀÇ ¼¼Æ÷»ç¸ê¿¡ ÀÇÇØ¼ ÁÙ¾îµå´Â °ÍÀÌ ºÐ¸íÈ÷ º¸ÀÌ´Â °¡Àå ³ªÁß ´Ü°è (Ä«³×±â 23 ´Ü°è)¿Í ºñ±³ÇÏ´Â °ÍÀº ƯÈ÷ ¸¹Àº Á¤º¸¸¦ ÁÙ °ÍÀÔ´Ï´Ù.
ÆÄÃæ·ù¿Í Á¶·ù´Â ¾ËÀ» ³ºÀ¸¸ç, ž´Â »õ³¢´Â "³Ä¡(Õ°öÍ, egg-tooth ,¿ªÁÖ : Á¶·ùÆÄÃæ·ùÀÇ »õ³¢°¡ ¾ËÀ» ±ú°í ³ª¿Ã ¶§¿¡ ¾²´Â ºÎ¸®ÀÇ ³¡)"¸¦ »ç¿ëÇØ¼ °¡Á×ó·³ Áú±ä ÄɶóƾÀ¸·Î µÈ ¾Ë²®Áú(µµ¸¶¹ì°ú ¹ì¿¡°Ô¼ ¹ß°ßµÊ)À» ±ú°í ³ª¿À°Å³ª, µüµüÇÑ Ä®½·ÁúÀÇ ¾Ë²®Áú(°ÅºÏÀÌ¿Í »õ¿¡°Ô¼ ¹ß°ßµÊ)À» ±ú±â À§Çؼ caruncle¶ó°í ºÒ¸®´Â Ư¼öÇÑ ±¸Á¶¸¦ »ç¿ëÇÕ´Ï´Ù. Æ÷À¯·ù°¡ ÆÄÃæ·ù¸¦ ´àÀº Á¶»ó¿¡¼ ÁøÈÇßÀ¸¸ç, À¯Å¹ݷù Æ÷À¯·ù´Â (Àΰ£°ú °³¿Í °°Àº) ³Ä¡¿Í caruncleÀ» ÀÒ¾î ¹ö·È½À´Ï´Ù. ±×·¯³ª ¿À¸®³Ê±¸¸®³ª ¹Ù´ÃµÎ´õÁö¿Í °°Àº ¿ø½ÃÀûÀÎ Æ÷À¯·ùÀÎ ´Ü°ø·ù´Â ±×µéÀÇ ¾ËÀÌ ¸Å¿ì ¾ãÀº °¡Á×°°Àº ÇüÅÂÀÓ¿¡µµ ºÒ±¸ÇÏ°í ³Ä¡¿Í caruncleÀ» ¸ðµÎ °¡Áö°í ÀÖ½À´Ï´Ù (Tyndale-Biscoe and Renfree 1987, p. 409). ´õ ³î¶ø°Ôµµ À¯´ë·ù°¡ ¹ß´ÞÇÏ´Â µ¿¾È, ¾Ë²®ÁúÀÌ Àá½Ãµ¿¾È Çü¼ºµÇ°í ±×µéÀÌ Å¾±â Àü¿¡ ÀçÈí¼öµË´Ï´Ù. ±×·² Çʿ䰡 ¾øÀ½¿¡µµ ºÒ±¸Çϰí, ¸î¸î À¯´ë·ùÀÇ ½Å»ý¾Æ (baby Brushtail possums, Äھ˶ó, ¹× Ä»°Å·çÁã¿Í °°Àº)µéÀº ±×µéÀÇ ÆÄÃæ·ùÀûÀÌ¸ç ³»ý(Õ°ßæ)À̾ú´ø Á¶»óÀ» µå·¯³»´Â ÈçÀû caruncleÀ» ¾ÆÁ÷µµ °¡Áö°í ÀÖ½À´Ï´Ù(Tyndale-Biscoe and Renfree 1987, p. 409).
»ý¸íüÀÇ ÀÏÄ¡µÈ °èÅë¹ß»ý¼ö·ÎºÎÅÍ ¿ì¸®´Â ºñ·Ï ÇÚ´ë¿¡ »ýÁ¸ÇÏ´Â »õ¿¡°Ô´Â ÀÌ»¡ÀÌ ¾øÁö¸¸ ÀÌ»¡À» °¡Áø ÆÄÃæ·ù Á¶»óÀ¸·ÎºÎÅÍ ÁøÈÇß´Ù´Â °ÍÀ» ¾Ë ¼ö ÀÖ½À´Ï´Ù. ±×·¯¹Ç·Î ¿ì¸®´Â »õÀÇ Á¶»óÀÌ ¾î´À ½ÃÁ¡¿¡¼´Â ÀÌ»¡À» °¡Áö°í ÀÖ¾úÀ¸¸ç, ¿ì¸®´Â Ȥ½Ã ¾ÆÁ÷Àº »õ°¡ ÀÌ»¡À» ¹ß»ý½ÃŰ´Â À¯ÀüÀû, ȤÀº ¹ß»ýÇÐÀû ÇÁ·Î±×·¥À» À¯ÁöÇϰí ÀÖÀ» °¡´É¼ºÀ» ¿¹ÃøÇØ º¼ ¼ö ÀÖ½À´Ï´Ù. ȼ®±â·ÏÀº ÇÑ ¶§ »õÀÇ Á¶»óÀÌ ÀÌ»¡ÀÌ ÀÖ¾úÀ½À» È®ÀνÃÄÑ ÁÝ´Ï´Ù. ½ÃÁ¶»õ¸¦ Æ÷ÇÔÇÏ¿© ÀÌ»¡À» °¡Áø ¸¹Àº Á¶·ùÀÇ È¼®¿¡ ÀÇÇØ º¸¿©Á³µíÀÌ, °Ô´Ù°¡ ÀÌ ¿¹Ãø °¡´É¼ºÀº À̰ÍÀº Çö´ëÀÇ Á¶·ù, º´¾Æ¸µ°Ô¼ ½ÇÇèÀûÀ¸·Î È®ÀεǾú½À´Ï´Ù(Kollar and Fisher 1980).
ÆÄÃæ·ù ±×¸®°í Æ÷À¯·ùÀÇ ¹ß»ý°úÁ¤¿¡¼ Ä¡¾ÆÀÇ ¹ý¶ûÁúÀº ÀÕ¸öÀÇ Ç¥¸éÀ» µ¤Àº epithelial ¼¼Æ÷¿¡¼ Çü¼ºµÇÁö¸¸, ÀÌ»¡À» ¸¸µå´Â »ó¾ÆÁúÀº Áß°£¿±(mesenchyme) À̶ó´Â Á»´õ ±íÀº °÷¿¡ ÀÖ´Â ¼¼Æ÷¿¡¼ ¸¸µé¾îÁý´Ï´Ù. ±×·¯³ª »õ¿¡°Ô´Â »óÇǼ¼Æ÷ÃþÀº ÀϹÝÀûÀ¸·Î Á©¶óƾÀ¸·Î µÈ ºÎ¸®¸¦ Çü¼ºÇÕ´Ï´Ù. Äݶó¿Í ÇǼÅ(Kollar and Fisher) ´Â Æ÷À¯·ùÀÇ Áß°£¿± Á¶Á÷(ÀÌ»¡À» Çü¼ºÇÔ)À» ¹ß»ýÇÏ´Â º´¾Æ¸®ÀÇ ºÎ¸®¸¦ Çü¼ºÇÏ´Â »óÇǼ¼Æ÷Ãþ ¹Ø¿¡ À̽ÄÇß½À´Ï´Ù. Èï¹Ì·Ó°Ôµµ, ±×µéÀº º´¾Æ¸®ÀÇ »óÇǼ¼Æ÷ ¼¼Æ÷°¡ Ä¡¾Æ¸¦ Çü¼ºÇÏ´Â ¹ý¶ûÀ» ºÐºñÇϰí ÀÎÁ¢ÇÑ Áß°£¿±Àº ÀÌ»¡À» Çü¼ºÇϵµ·Ï Áö½ÃÇÏ´Â °ÍÀ» °üÂûÇß½À´Ï´Ù. À̰ÍÀº º´¾Æ¸®°¡ ÀÌ»¡À» ¸¸µå´Â À¯ÀüÀÚ¿Í °æ·Î¸¦ °¡Áö°í ÀÖÁö ¾ÊÀ¸¸é ºÒ°¡´ÉÇÕ´Ï´Ù. ±×·¯¹Ç·Î º´¾Æ¸®´Â ÀÌ»¡ ¹ß»ý¿¡ ÇÊ¿äÇÑ À¯ÀüÀÚ¸¦ ¿ÏÀüÈ÷ ÀÒ¾î ¹ö¸®Áö ¾Ê¾Ò½À´Ï´Ù.
¿ì¸®ÀÇ Ç¥ÁذèÅë¹ß»ý¼ö¿¡ ±Ù°ÅÇÏ¿© ¿ì¸®´Â Æ÷À¯·ù ¹è¾Æ ¹ß»ý°úÁ¤¿¡¼ ¾Æ¸¶¹Ì³¶°ú ¾Ë±õÁúÀ» ¹ß°ßÇÒ °ÍÀ» ±â´ëÇÒ ¼ö ÀÖ½À´Ï´Ù. ±×·¯³ª ¿ì¸®´Â ¾î·ù, ¾ç¼·ù ȤÀº ÆÄÃæ·ù ¹è¾Æ¿¡¼ ±× ¾î¶°ÇÑ ½ÃÁ¡¿¡¼µµ Á¥²ÀÁö, ¸Ó¸®Ä«¶ô, ȤÀº ÁßÀÌÀÇ ¸ð·ç»À¸¦ ¹ß°ßÇÒ ¼ö ¾øÀ» °ÍÀÔ´Ï´Ù. ¸¶Âù°¡Áö·Î ¿ì¸®´Â ÀϺΠÁ¶·ù ¹è¾ÆÀÇ ÀÔ¿¡¼ ÀÌ»¡À» ¹ß°ßÇÒ °ÍÀ» ±â´ëÇÒ ¼ö ÀÖ½À´Ï´Ù. ±×·¯³ª ¿ì¸®´Â À¯Å¹ݷù (Àΰ£, ¼Ò, °³, ȤÀº Å䳢ó·³ Å¹ÝÀÌ ÀÖ´Â µ¿¹°)¿¡°Ô¼ Àý´ë·Î Á¶·ù ´àÀº ºÎ¸®¸¦ ±â´ëÇÒ ¼ö ¾øÀ» °ÍÀÔ´Ï´Ù. ¿ì¸®´Â Àΰ£ ¹è¾Æ¿¡¼ ²¿¸®¸¦ ãÀ» °ÍÀ» ±â´ëÇÒ ¼ö ÀÖÁö¸¸(±×¸² 2.3.1), Áã°¡¿À¸®, ¹ìÀå¾î, °æ°ñ¾î·ù, ȤÀº »ó¾î¿¡°Ô¼ ´Ù¸® µ¹±â ȤÀº ¹ß»ýÁßÀÎ ´Ù¸®¸¦ ãÀ» °ÍÀ» ±â´ëÇÏÁö ¾Ê½À´Ï´Ù. ÀÌ·¯°ÍµéÀÌ ¹ß°ßµÇ¸é ´ëÁøÈ·Ð À̷п¡ Á÷Á¢ÀûÀÎ ¸ð¼øÀÌ »ý±â°Ô µË´Ï´Ù(Gilbert 1997, esp. Ch. 23).
Á¾ÀÇ ´Ù¾ç¼ºÀÌ ½Ã°£ÃàÀ¸·Î ÀϾ±âµµ ÇÏÁö¸¸ °ø°£ÃàÀ¸·Î ÀϾ±â ¶§¹®¿¡, °øÅëÁ¶»óÀº ƯÁ¤ÇÑ Áö¸®ÇÐÀû °ø°£À§¿¡¼ ½ÃÀÛÇÕ´Ï´Ù. ±×·¯¹Ç·Î °ø°£Àû ±×¸®°í Áö¸®ÇÐÀûÀ¸·Î Á¾ÀÇ ºÐÆ÷´Â ¿¹»ó °èÅëÀûÀΠģô°ü°è¿Í Àϰü¼ºÀÌ ³ªÅ¸³³´Ï´Ù. Ç¥ÁذèÅë¹ß»ý¼ö´Â »õ·Î¿î Á¾Àº ±× Á¾ÀÌ À¯¸®ÇÑ Á»´õ ¿À·¡µÈ Á¾¿¡¼ °¡±î¿î °÷¿¡¼ ³ªÅ¸³´Ù°í ¿¹ÃøÇÕ´Ï´Ù. ¾ÆÁÖ °¡±î¿î °ü°è¿¡ ÀÖ´Â µ¿½Ã´ëÀÇ Á¾Àº ±×µéÀÇ ¼½Äó³ª ƯÁ¤ÇÑ ÀûÀÀ¼º°ú´Â °ü·Ã¾øÀÌ Áö¸®ÀûÀ¸·Î °¡±î¿ö¾ß ÇÕ´Ï´Ù. ¸¸¾à ±×·¸Áö ¾Ê´Ù¸é ¾Æ¸¶ ¶Ù¾î³ ±âµ¿¼º(¹Ù´Ùµ¿¹°, »õ, Àΰ£ÀÌ ¸Å°³·Î ÇÑ ºÐÆ÷), ´ë·úÀÇ À̵¿, ȤÀº °¥¶óÁø ÈÄ »ó´çÇÑ ½Ã°£ÀÌ Èê·¶´Ù´Â °ÍµîÀÇ ¼³¸íÀÌ ÇÊ¿äÇÒ °ÍÀÔ´Ï´Ù. ÀÌ·¯ÇÑ Àǹ̿¡¼ ÇöÀçÀÇ Á¾ÀÇ »ý¹°Áö¸®ÇÐÀû ºÐÆ÷´Â ±×µéÀÇ À¯·¡¿¡ ´ëÇÑ ¿ª»ç¸¦ ¹Ý¿µÇØ¾ß ÇÕ´Ï´Ù.
ÇÕ¸®ÀûÀÌÁö¸¸ ºñÁøÈ·ÐÀûÀÎ ¿¹ÃøÀ¸·Î´Â ±× Á¾µéÀº ±×µéÀÌ »ì ¼ö ÀÖ´Â ¸ðµç ¼½Äó¿¡ Á¸ÀçÇØ¾ß ÇÒ °ÍÀÔ´Ï´Ù. ±×·¯³ª, ´ëÁøÈ·ÐÀûÀÎ ¿¹ÃøÀº ÀÌ¿Í ¹Ý´ë·Î, Á¾ÀÌ ¹ß°ßµÇÁö ¾Ê¾Ò´Ù°í ÇØµµ ±× Á¾ÀÌ »ì ¼ö ÀÖ´Â ¼½Äó´Â ¸¹À¸¸ç, Á¾ÀÌ ¹ß°ßµÇÁö ¾Ê´Â °ÍÀº Áö¸®ÇÐÀû À庮 ¶§¹®À̶ó°í »ý°¢ÇÕ´Ï´Ù(Futuyma 1998, pp. 201-203).
¿¹¿Ü°¡ ÀÖ±â´Â ÇÏÁö¸¸, ´ëºÎºÐÀÇ À¯´ë·ù´Â ¿ÀÁ÷ È£ÁÖ¿¡¸¸ ÀÖ½À´Ï´Ù. ¿¹¿Ü´Â (ÀϺΠ³²¹ÌÁ¾°ú ¿ÀÆÛ¼¶)Àº ´ë·úÀ̵¿(³²¹Ì¿Í È£ÁÖ ³²±ØÀº ¿¹Àü¿¡ °ïµå¿Í³ª·£µå¶ó´Â ÇϳªÀÇ Ä¿´Ù¶õ ´ë·úÀ̾ú½À´Ï´Ù.)À¸·Î ¼³¸íÀÌ µË´Ï´Ù. ¹Ý´ë·Î, À¯Å¹ݷù Æ÷À¯·ù´Â È£ÁÖ¿¡´Â ±×µéÀÌ °Å±â¼ ¹ø¼ºÇÒ ¼ö ÀÖÀ» °Í °°¾Æµµ °ÅÀÇ ¾ø½À´Ï´Ù. Àΰ£ÀÌ È£ÁÖ¿¡¼ ¹ß°ßµÇ´Â ¸î À¯Å¹ݷù¸¦ µé¾î¿ÀÀÚ ±×µéÀº ±Þ¼Óµµ·Î ÆÛÁö±â ½ÃÀÛÇß½À´Ï´Ù.
ºñ½ÁÇϰÔ, ³²¹ÌÀÇ ³²ÂÊ ³¡ºÎºÐ°ú ¾ÆÇÁ¸®Ä« ¹× È£ÁÖ¿¡´Â Æó¾î¿Í, ŸÁ¶ ºñ½ÁÇÑ »õ(ÁÖÁ¶·ù, ñËðè×¾)¿Í leptodactylid frogs°¡ ÀÖÁö¸¸ À̵éÀº ´Ù¸¥ °÷¿¡¼´Â ¾îµð¼µµ ã¾Æº¼ ¼ö ¾ø½À´Ï´Ù. ¾Ù¸®°ÔÀÌÅÍ, ÀÚÀÌ¾ðÆ® µµ·æ´¨°ú °¡±î¿î ¸î¸î Á¾, ±×¸®°í ¸ñ·Ã(magnolias)Àº ¿ÀÁ÷ ºÏ¾Æ¸Þ¸®Ä«ÀÇ µ¿ºÎ¿Í µ¿¾Æ½Ã¾Æ¿¡¼¸¸ ³ªÅ¸³³´Ï´Ù.(À̵é Áö¿ªÀº ÇѶ§´Â ·Î¶ó½Ã¾Æ ´ë·ú¾È¿¡ ÀÖ¾úÀ¸¸ç, ¼·Î °Å¸®ÀûÀ¸·Î ¸Å¿ì °¡±î¿ü½À´Ï´Ù.)
°Ô´Ù°¡, ¹Ì±¹, »çÇ϶ó, È£ÁÖÀÇ »ç¸·Àº ¸Å¿ì ºñ½ÁÇÑ ¼½Äó¸¦ °¡Áö°í ÀÖÀ¸¸ç ¼·Î ¼·Î ½Ä¹°ÀÌ Àß ÀÚ¶ö ¼ö ÀÖ½À´Ï´Ù. ±×·¯³ª, ÅäÂø¼º °¡½ÃÀÖ´Â ¼±ÀÎÀåÀº ¿ÀÁ÷ ¹Ì±¹¿¡¼¸¸ ÀÚ¶ó¸ç, »ç¶óÇÏ¿Í È£ÁÖÀÇ ½Ä»ýÀº ¾ÆÁÖ °ü°è°¡ ¸Õ °ÍµéÀÔ´Ï´Ù(º¸ÅëÀº ´ë±Ø°ú ½Ä¹°µéÀÔ´Ï´Ù.). È£ÁÖ¿¡¼ ¹ß°ßµÇ´Â °¡½Ã ÀÖ´Â ¼±ÀÎÀåÀº »ç¶÷ÀÌ µé¿©¿Â °ÍÀ̸ç, À̵éÀ» »õ·Î¿î Áö¸®ÀûÀÎ Àå¼Ò¿¡¼ ¾ÆÁÖ Àß ¼ºÀåÇÕ´Ï´Ù.
³²¹ÌÀÇ ¼ºÎ¿Í µ¿ºÎ ÇØ¾ÈÀº ¼½ÄÁö°¡ ¾ÆÁÖ ºñ½ÁÇÕ´Ï´Ù¸¸, ÇØ¾ç µ¿¹°»óÀº ¸Å¿ì ´Ù¸¨´Ï´Ù. °Ô´Ù°¡,
ÆÄÀξÖÇðúÀÇ »ó´çÈ÷ °¡±î¿î Á¾µéÀÌ ´Ù¾çÇÑ ¼½Äó(¿¹¸¦µé¾î, ¿´ë¿ì¸², °í»ê, »ç¸·Áö´ë)¿¡ »ì°í ÀÖÁö¸¸, ¹Ì ´ë·úÀÇ ¿´ëÁö¹æ¿¡¸¸ »ì°í ÀÖÁö ¾ÆÇÁ¸®Ä«³ª ¾Æ½Ã¾Æ ¿´ë Áö¿ª¿¡´Â ¾ø½À´Ï´Ù (Futuyma 1998, ch. 8).
Á¾ÀÇ ºÐÆ÷¿¡ ´ëÇÑ Á¦ÇÑµÈ Áö½ÄÀ¸·ÎºÎÅÍ, ¿ì¸®´Â ÅÂÆò¾çÀÇ ¼¶¿¡¼ ±×µéÀÌ Àß »ì ¼ö ÀÖÀ½¿¡µµ ºÒ±¸Çϰí Àý´ë·Î ÄÚ³¢¸®¸¦ ¹ß°ßÇÒ ¼ö ¾øÀ» °ÍÀ̶ó°í ¿¹ÃøÇÒ ¼ö ÀÖ½À´Ï´Ù. ÀÌ¿Í À¯»çÇϰÔ, ¿ì¸®´Â ¸Ö¸® ¶³¾îÁø ¼¶¿¡¼ºÎÅÍ ¾ç¼·ù¸¦ ¹ß°ßÇÒ ¼ö ¾øÀ¸¸ç, È£ÁÖ¿¡¼ ÀÚ»ýÀûÀÎ °¡½Ã´Þ¸° ¼±ÀÎÀåÀ» ¹ß°ßÇÒ ¼ö ¾øÀ» °ÍÀ̶ó°í ¿¹ÃøÇÒ ¼ö ÀÖ½À´Ï´Ù. ¼½Äó¸¸ ±×µé¿¡°Ô ¸Â´Ù¸é, °¡±î¿î ģô°ü°è¿¡ ÀÖ´Â Á¾Àº ¼¼»ó¿¡ °ñ°í·ç ºÐÆ÷ÇÒ ¼ö ÀÖ½À´Ï´Ù. ÇÏÁö¸¸, ¸¸¾à ÀÌ·¸°Ô °ñ°í·ç ºÐÆ÷ÇÏ°í »ì¾Ò´Ù¸é, À̰ÍÀº ´ëÁøÈ·Ð¿¡ ´ëÇÑ °ÇÑ Å¸°ÝÀÌ µÇ¾úÀ» °ÍÀÔ´Ï´Ù(Brown and Lomolino 1998).
ȼ®ÀÌ ¹ß°ßµÈ °ÍÀ¸·ÎºÎÅÍ ¸¸µé¾îÁø °ú°Å »ý¹° Áö¸®ÇÐÀº Ç¥ÁذèÅë¹ß»ý¼ö¸¦ ÀçÈ®ÀνÃÄѾ߸¸ ÇÕ´Ï´Ù.
ÇϳªÀÇ »ç·Ê·Î¼, ¿ì¸®´Â ³²¾Æ¸Þ¸®Ä« À¯´ë·ù¿Í È£ÁÖÀÇ À¯´ë·ùÀÇ °¡»óÀûÀÎ °øÅë Á¶»óÀÌ À̵é 2°³ ´ë·úÀÌ ºÐ¸®µÇ±â ÀÌÀü¿¡ ¹ß°ßµÉ °ÍÀ̶ó°í °á·Ð³»·È½À´Ï´Ù.
°á°úÀûÀ¸·Î ¿ì¸®´Â °¡Àå ÃÖÃÊÀÇ À¯´ë·ù(¿¹¸¦µé¾î ¾ËÆÄµ·) ³²¾Æ¸Þ۶ó, È£ÁÖ, ³²±ØÀÌ ¼·Î ¿¬°áµÇ¾î ÀÖ¾ú´ø ¹é¾Ç±â Èı⿡¼ ¹ß°ßÇß½À´Ï´Ù. °Ô´Ù°¡, ½ÇÁ¦·Î Çö´ë À¯´ë·ùÀÇ °¡Àå ÃÖÃÊÀÇ Á¶»óÀÌ ºÏ¹Ì¿¡¼ ¹ß°ßµÇ¾ú½À´Ï´Ù. °í»ý¹°ÇÐÀûÀ¸·Î »ý°¢Çغ¸¸é, À¯´ë·ù°¡ ÀÌµé ´ë·ú¿¡ ÆÛÁ®¾ß¸¸ ÇÏ°í ±×µéÀÌ ¿À´Ã »ì°í Àִ ȣÁÖ¿¡ µµÂøÇϱâ À§Çؼ´Â ¸êÁ¾µÈ À¯´ë·ù ȼ® À¯±âü°¡ ³²¾Æ¸Þ¸®Ä«¿Í ³²±Ø¿¡¼ ¹ß°ßµÇ¿©¾ß ÇÒ °ÍÀÔ´Ï´Ù. Èï¹Ì·Ó°Ôµµ,¿ì¸®´Â ³²¾Æ¸Þ¸®Ä«¿Í ³²±Ø¿¡¼ À¯´ë·ù ȼ®À» ¹ß°ßÇß½À´Ï´Ù. Áö±ÝÀº ³²±Ø¿¡ À¯´ë·ù°¡ ÀüÇô ¾ø±â ¶§¹®¿¡ À̰ÍÀº ´ëÁøÈ·Ð¿¡ ´ëÇÑ ³î¶ó¿î È®ÀÎÁõ°ÅµéÀÔ´Ï´Ù (Woodburne and Case 1996).
¿ì¸®´Â À¯ÀοøÀ̳ª ÄÚ³¢¸® °°Àº ÃÖ±Ù¿¡ ÁøÈÇÑ µ¿¹°ÀÇ È¼®ÀÌ ³²¾Æ¸Þ¸®Ä«, ³²±Ø, ȤÀº È£Áß¼ Àý´ë·Î ¹ß°ßµÇÁö ¾ÊÀ» °ÍÀ» È®½ÅÀ» °¡Áö°í ¿¹ÃøÇÒ ¼ö ÀÖ½À´Ï´Ù. (¹°·Ð º¸Æ®¸¦ °¡Áö°í ÀÌÁÖ½ÃŲ °ÍÀ» ¿¹¿ÜÀÔ´Ï´Ù.)
µÎ ¹øÂ° »ç·Ê´Â °¡Àå ¿Ïº®ÇÑ È¼® ±â·ÏÀÌ »ý¹°Áö¸®ÇÐÀûÀ¸·Î ÀÚ¿¬½º·´°Ô ¿¬°áµÇ¾î¾ß¸¸ ÇÕ´Ï´Ù. Áß°£ Á¾µéÀº ±×µéÀÇ È¼® Á¶»ó°ú °¡±î¿î °÷¿¡¼ ¹ß°ßµÇ¾î¾ß¸¸ ÇÕ´Ï´Ù.
¸»°ú (Equidae, ¿¹¸¦µé¾î ¸») ȼ®±â·ÏÀº ¸Å¿ì ¿Ïº®Çϸç (ºñ·Ï ¸Å¿ì º¹ÀâÇÏÁö¸¸) ±×¸®°í ¸Å¿ì ÈǸ¢ÇÑ Áö¸®ÇÐÀû ÇÕ¸®¼ºÀ» º¸ÀÔ´Ï´Ù. Áß°£È¼®»êÀÇ Áö¼ÓÀûÀÎ Å« Â÷À̸¦ º¸ÀÌÁö ¾Ê°í,
¿¹¸¦µé¾î ÃÖ¼ÒÇÑ 10Á¾ÀÇ Áß°£È¼®ÀÇ ¸» ¼ÓÀÌ 5õ8¹é¸¸³â¿¡ °ÉÃÄ ÀÖ¾ú½À´Ï´Ù. ȼ®ÀÇ °¢°ú´Â ¾à 500¸¸³â¿¡ °ÉÃÄ ÀÖÀ¸¸ç À̵éÀÇ °¢ Áß°£Á¾µéÀº Æò±ÕÀûÀ¸·Î ¾à 5-6Á¾ÀÇ Áß°£ °í´ëÁ¾ÀÌ Æ÷ÇԵǾî ÀÖ½À´Ï´Ù. À̵éÀÌ ¾ÕµÚ Áß°£È¼®À» ¿¬°áÇϰí ÀÖ½À´Ï´Ù. À̵éÀº °¡Àå ÃÖÃÊÀÇ ¼ÓÀÎ ÇÏÀ̶óÄÚµ¥·ý (Hyracotherium, °³¿Í ´à¾ÒÀ½) ¿¡ÇÇÈ÷Ǫ½º(Epihippus), ¸ÞÁ¶È÷Ǫ½º(Mesohippus), ¹Ì¿ÀÈ÷Ǫ½º(Miohippus), ÆÄ¶óÈ÷Ǫ½º(Parahippus), ¸Þ¸®Å°Çª½º(Merychippus), ¹Ì³ëÈ÷Ǫ½º(Dinohippus), ¸»(Equus) ¿¡¼ Çö´ëÀÇ ¸»·Î À̾îÁý´Ï´Ù(MacFadden 1992, pp. 99, 156-162). Çö´ë ¸»ÀÇ È¼® Á¶»óÀÇ °¢ Çϳª Çϳª´Â ¸ðµÎ ºÏ¹Ì¿¡¼ ¹ß°ßµË´Ï´Ù. ÀÚ¼¼ÇÑ °ÍÀº Ä«½º¸° Ç寮ÀÇ Ã¶ÀúÇÑ Horse EvolutionÀÇ FAQ¸¦ Àо½Ã±æ ¹Ù¶ø´Ï´Ù.
ÆÄ³ª¸¶ ÁöÇù(Isthmus Panama)ÀÌ À¶±âµÇ¾î µÎ ´ë·úÀÌ ¿¬°áµÇ±â ÀÌÀü (1,200¸¸³â ÀÌÀü)ÀÎ ÆÈ·Î¿À¼¼, ½Ã½Å¼¼, Á¡½Å¼¼, Á߽ż¼ ȤÀº ±×Àü ¾î´À½ÃÀýÀÌ¶óµµ ¸¸¾à ³²¾Æ¸Þ¸®Ä«¿¡¼ ¸í¹éÇÑ ¿¡¿ÀÈ÷Ǫ½º ȤÀº ¸Þ¸®Å°Çª½º ȤÀº À̵éÁß ¾î¶°ÇÑ Áß°£Á¾À» ¹ß°ßÇÑ´Ù¸é À̰ÍÀº ´ëÁøÈ·Ð¿¡ ½É°¢ÇÑ Å¸°ÝÀÌ µÉ °ÍÀÔ´Ï´Ù. °Ô´Ù°¡ ¿ì¸®´Â Àý´ë·Î È£ÁÖ¿Í ³²±Ø¿¡¼´Â ¾î¶°ÇÑ ÁöÁúÇÐÀû ½Ã±â¿¡µµ ¸» Á¶»ó ȼ®À» ¹ß°ßÇÏÁö ¸øÇÒ °ÍÀÔ´Ï´Ù(MacFadden 1992; Brown and Lomolino 1998).
¼¼ ¹øÂ° »ç·Ê·Î, À¯ÀοøÀ» »ý°¢ÇØ º¸°Ú½À´Ï´Ù. Àΰ£Àº ¾ÆÇÁ¸®Ä«¿¡ indegenousÇÑ great À¯Àοø°ú °¡±õ°Ô related µÇ¾î ÀÖ½À´Ï´Ù(ºÐÁö·ÐÀû ÇüÅÂÇÐÀû ºÐ¼®°ú DNA ¼¿ ºÐ¼®À¸·Î È®ÀÎµÈ ¹Ù¿¡ ÀÇÇϸé). ¿Ö ¸®Å°, ·¹À̸óµå ´ÙÆ®, ·Î¹öÆ® ºê·ëÀÌ Ãʱâ È£¹Ì´Ïµå ȼ®À» ã±â À§Çؼ ¾ÆÇÁ¸®Ä«·Î °¬°Ú½À´Ï±î? ¿Ö È£ÁÖ, ºÏ¹Ì, ³²¹Ì, ½Ãº£¸®¾Æ, ȤÀº ¸Þ¼ÒÆ÷Ÿ¹Ì¾Æ¿¡¼ ¹ß±¼ÇÏÁö ¾Ê°Ú½À´Ï±î? 𽺠´ÙÀ©Àº ÀÌ Áú¹®¿¡ ¾î¶°ÇÑ Ãʱâ È£¹Ì´Ï½º ȼ®µµ ¹ß°ßµÇ±â ÀüÀÎ 130³â Àü¿¡ ´ÙÀ½°ú °°ÀÌ ´äº¯À» ÇÏ¿´½À´Ï´Ù.
"We are naturally led to enquire, where was the birthplace of man at that stage of descent when our progenitors diverged from the Catarrhine stock? The fact that they belonged to this stock clearly shews that they inhabited the Old World; but not Australia nor any oceanic island, as we may infer from the laws of geographical distribution. In each great region of the world the living mammals are closely related to the extinct species of the same region. It is therefore probable that Africa was formerly inhabited by extinct apes closely allied to the gorilla and chimpanzee; and as these two species are now man's nearest allies, it is somewhat more probable that our early progenitors lived on the African continent than elsewhere." (Darwin 1871, p. 161) |
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