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动物胎儿趣事
象:鼻子初长成要花一年
象的怀孕期约为两年,在哺乳动物中时间最长。小象胚胎需要大约16个星期时间才能长出象鼻,而象鼻长度超过腿则用了近1年。
海豚:妈妈体内开始学游泳
摄制组在拍摄海豚胚胎时发现,8个星期大的小海豚就开始在母体子宫内学游泳。而在接下去的几星期里,小海豚长出鳍、尾巴和头顶的喷水孔。因为出生后必须立刻浮上水面呼吸,小海豚必须在母体内就学会游泳。
金毛狗:子宫内伸舌头喘气
摄制组在拍摄金毛犬胚胎时发现,刚长出“狗样”的胚胎和长成的宠物狗有不少相似之处,还在母体子宫内,它就会像成年狗一样伸出舌头喘气。