Anewstudyfindsthatyo的精選

問題詳情：AnewstudyfindsthatyoungfemalesinonegroupofAfricanchimps(黑猩猩)usesticksasdollsmorethantheirmalepeers(同齡)do,oftentreatingpiecesofwoodlikeamotherchimpcaringforababy.Inhumanculturesaroundthewo...