三九養(yǎng)生堂記者 鄧肯·蓋伊 報道
精彩| 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(dāng)??(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)??。?? 徐??(xu)光??(guang)輝??(hui)研??(yan)究??(jiu)員??(yuan)表??(biao)示??(shi)??，在??(zai)分??(fen)類??(lei)學(xué)??(xue)上??(shang)??，雀??(que)鱔??(shan)及??(ji)其??(qi)祖??(zu)先??(xian)類??(lei)型??(xing)(如??(ru)半??(ban)椎??(zhui)魚??(yu)目??(mu)和?(he)拱??(gong)魚??(yu)目??(mu))統(tǒng)??(tong)稱??(cheng)為??(wei)鉸??(jiao)齒??(chi)魚??(yu)類??(lei)??，構(gòu)??(gou)成??(cheng)輻??(fu)鰭??(qi)魚??(yu)亞??(ya)綱??(gang)中??(zhong)新??(xin)鰭??(qi)魚??(yu)類??(lei)的??(de)三??(san)大??(da)主??(zhu)要??(yao)類??(lei)群??(qun)之?(zhi)一??(yi)??。??
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