![AnewstudyfindsthatyoungfemalesinonegroupofAfricanchimps...]( "AnewstudyfindsthatyoungfemalesinonegroupofAfricanchimps...")
- 問題詳情：AnewstudyfindsthatyoungfemalesinonegroupofAfricanchimps(黑猩猩)usesticksasdollsmorethantheirmalepeers(同齡)do,oftentreatingpiecesofwoodlikeamotherchimpcaringforababy.Inhumanculturesaroundtheworld,girlsplaywithdollsandpretendthatthetoysarebabi...
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