Verymobileearshelpmanyanimalsdirecttheirattentiontother...
問題詳情：Verymobileearshelpmanyanimalsdirecttheirattentiontotherustle(沙沙聲)ofapossibleattacker.Researcherssaythesemobileearshavebecomeausefulcommunicationtool.Theirstudiesofanimalbehaviourbuildupapic...