Camelsarewellknownfortheirabilitytosurvivethehotandd...
问题详情： Camelsarewellknownfortheirabilitytosurvivethehotanddryconditionsofthedesert,butastudysuggeststheyoncegrewwellincolderclimates.Scientistshavefoundfossilized（化石）partsofalegbonebelongingtoa...