英语翻译Inthepast200years,Australiahaslost19species（种类）ofanimalsand76speciesofplants.TheAustralianNationalParksandWildlifeServiceestimatesthatbetween100and250millionspeciesofanimalsandplantshavelivedon

　　英语翻译

　　Inthepast200years,Australiahaslost19species（种类）ofanimalsand76speciesofplants.TheAustralianNationalParksandWildlifeServiceestimatesthatbetween100and250millionspeciesofanimalsandplantshavelivedonEarthsincelifebeganabout3.5millionyearsago.Today,therearebetween5and10millionspecies,ofwhichuptoImillionspeciescouldbeextinct（灭绝）bytheyear2000.

　　ThefirstspecialtodisappearaftertheEuropeanarrivalinAustraliawerethelesserstick-nestrat,thebig-earedhoppingmouseandtheDarlingDownshoppingmouse.Thisoccurredinabout1840.

　　Todaythecouncilofstateandfederalministersresponsiblefornatureconservation（保护）hasproducedalistofcurrentlyendangeredvertebratefauna（脊椎动物）,whichincludesarangeofbettongswallabies(小袋鼠),andthenumbat(袋食蚁兽).Threespeciesofwhale,variousbirds,anumberoffrogs.Snakesandfisharealsoonthelist.Butthereissomecauseforoptimism（乐观）.Severalspecies

　　previouslybelievedextincthavereappearedinrecentyears.Recentlysurvey

　　partiesinremoteareashaveevenfoundnewspeciesofmarsupials(有袋动物),and

　　reptile(爬行的)speciesareregularlydiscovered.

　　Thiscouldmeanthatother"extinct"speciesmayyetsurface—eventheTasmanian(托斯马尼亚的)tiger,whichsomeauthoritiesbelievestillexistsintheremoteregionsofTasmania.