三九養(yǎng)生堂記者 鄧肯·蓋伊 報道
精彩| 中??(zhong)新??(xin)網(wǎng)?(wang)北??(bei)京??(jing)10月??(yue)19日??(ri)電??(dian) (記??(ji)者??(zhe) 孫??(sun)自??(zi)法??(fa))現(xiàn)??(xian)生??(sheng)于??(yu)北??(bei)美??(mei)淡??(dan)水??(shui)環(huán)?(huan)境??(jing)的??(de)雀??(que)鱔??(shan)魚??(yu)??，早??(zao)在?(zai)1億??(yi)年??(nian)前??(qian)的??(de)白??(bai)堊??(e)紀??(ji)就??(jiu)和??(he)恐??(kong)龍??(long)一??(yi)同??(tong)生??(sheng)活??(huo)??，恐?(kong)龍??(long)滅??(mie)絕??(jue)了??(le)??，它??(ta)卻??(que)能??(neng)存??(cun)活??(huo)至??(zhi)今??(jin)??，其??(qi)起??(qi)源??(yuan)演?(yan)化?(hua)相??(xiang)關??(guan)研??(yan)究??(jiu)長??(chang)期??(qi)以??(yi)來??(lai)備??(bei)受??(shou)關??(guan)注??(zhu)??。?? 他??(ta)介??(jie)紹?(shao)說?(shuo)??，現(xiàn)?(xian)生??(sheng)的??(de)雀?(que)鱔??(shan)魚??(yu)類??(lei)屬??(shu)于??(yu)大??(da)型??(xing)的??(de)肉??(rou)食??(shi)性??(xing)魚??(yu)類??(lei)??，成??(cheng)年??(nian)體??(ti)長??(chang)可?(ke)達??(da)3米??(mi)??，它??(ta)能??(neng)成?(cheng)為??(wei)恐??(kong)龍??(long)時??(shi)代?(dai)“活??(huo)化??(hua)石??(shi)”的??(de)原??(yuan)因??(yin)主?(zhu)要??(yao)包??(bao)括??(kuo)：一??(yi)是??(shi)雀??(que)鱔??(shan)全??(quan)身??(shen)長??(chang)有??(you)一??(yi)層??(ceng)異??(yi)常??(chang)堅??(jian)硬??(ying)的??(de)菱??(ling)形??(xing)魚??(yu)鱗??(lin)??，可??(ke)以??(yi)防??(fang)御??(yu)敵??(di)害??(hai)；二??(er)是??(shi)雀??(que)鱔?(shan)魚??(yu)卵??(luan)有??(you)劇?(ju)毒??(du)??，不??(bu)可??(ke)食??(shi)用??(yong)??，使??(shi)后??(hou)代??(dai)的??(de)生??(sheng)存?(cun)得??(de)到??(dao)保??(bao)障??(zhang)；三??(san)是?(shi)雀??(que)鱔??(shan)魚??(yu)鰾??(biao)還??(hai)具??(ju)有??(you)呼??(hu)吸??(xi)功??(gong)能?(neng)??，當??(dang)水??(shui)中??(zhong)缺??(que)氧??(yang)時??(shi)??，它??(ta)可??(ke)以??(yi)游??(you)到??(dao)水??(shui)面??(mian)進??(jin)行??(xing)呼??(hu)吸??(xi)??。??
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