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- 問題詳情：Verymobileearshelpmanyanimalsdirecttheirattentiontotherustle(沙沙聲)ofapossibleattacker.Researcherssaythesemobileearshavebecomeausefulcommunicationtool.Theirstudiesofanimalbehaviourbuildupapictureofhowcommunicationandsocialskillsdeveloped. ...
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