按以下要求写一篇80字左右的英文作文~速求

Westhusin＇sexperiencewithcloninganimalsleaveshimupsetbyallthistalkofhumancloning.InthreeyearsofworkontheMissyproject,usinghundredsuponhundredsofdog＇seggs,theA&Mteamhasproducedonlyadozenorsoembryos(胚胎)carryingMissy＇sDNA.Nonehavesurvivedthetransfertoasurrogate(代孕的)mother.Thewastageofeggsandthemanyspontaneouslyabortedfetuses(胎)maybeacceptablewhenyou＇redealingwithcatsorbulls,heargues,butnotwithhumans.Cloningisincrediblyinefficient,andalsodangerous,hesays.Evenso,dogcloningisacommercialopportunity,withaniceresearchpayoff.EversinceDollythesheepwasclonedin1997,Westhusin＇sphonehasbeenringingwithpeoplecallinginhopesofduplicatingtheircatsanddogs,cattleandhorses.Alotofpeoplewanttoclonepets,especiallyifthepriceisright,saysWesthusin.CostisnoobstacleforMissy＇smysteriousbillionaireowner;he＇sputup$3.7millionsofartofundA&M＇sresearch.Contrarytosomemediareports,Missyisnotdead.TheownerwantsatwintocarryonMissy＇sfinequalitiesaftershedoesdie.Theprototypeis,byallaccounts,athletic,good-naturedandsupersmart.Missy＇smasterdoesnotexpectanexactcopyofher.Heknowsherclonemaynothavehertemperament.Inastatementofpurpose,Missy＇sownerandtheA&MteamsaytheyarebothlookingforwardtostudyingthewaysthatherclonesdifferfromMissy.作文库大全小升初中考满分高考满分高考零分Besidescloningagreatdog,theprojectmaycontributeinsightintotheoldquestionofnaturevs.nurture.Itcouldalsoleadtothecloningofspecialrescuedogsandmanyendangeredanimals.However,Westhusiniscautiousabouthiswork.Heknowsthatevenifhegetsadogpregnant,theoffspring,shouldtheysurvive,willfacetheproblemsshownatbirthbyotherclonedanimals:abnormalitieslikeimmaturelungsandheartandweightproblems~Whywouldyoueverwanttoclonehumans,Westhusinasks,whenwe＇renotevenclosetogettingitworkedoutinanimalsyet?