英语翻译Weallknowthatmanymorepeopletodayareright-handedthanleft-handed.Canonetracethissamepatternfarbackinprehistory?Muchoftheevidenceaboutright-handversusleft-handdominancecomesfromstencilsandprintsfoundinrock

　　英语翻译

　　Weallknowthatmanymorepeopletodayareright-handedthanleft-handed.Canonetracethissamepatternfarbackinprehistory?Muchoftheevidenceaboutright-handversusleft-handdominancecomesfromstencilsandprintsfoundinrocksheltersinAustraliaandelsewhere,andinmanyIceAgecavesinFrance,Spain,andTasmania.Whenalefthandhasbeenstenciled,thisimpliesthattheartistwasright-handed,andviceversa.Eventhoughthepaintwasoftensprayedonbymouth,onecanassumethatthedominanthandassistedintheoperation.Onealsohastomaketheassumptionthathandswerestenciledpalmdownward—alefthandstenciledpalmupwardmightofcourselookasifitwerearighthand.Of158stencilsintheFrenchcaveofGargas,136havebeenidentifiedasleft,andonly22asright;right-handednesswasthereforeheavilypredominant.