AdamRutherfordmeetsanewcreaturecreatedbyAmericanscientists-thespider-goat.Itispartgoat,partspider,anditsmilkcanbeusedtocreateartificialspider'sweb.　　Itispartofanewfieldofresearch,syntheticbiology,witharadicalaim:tobreakdownnatureintosparepartssothatwecanrebuildithoweverweplease.　　Thistechnologyisalreadybeingusedtom...