500dogownersplayedthesamegamesathonethatresearchersusei...
問題詳情：500dogownersplayedthesamegamesathonethatresearchersuseinthelaboratoryandcontributeddatatoastudyofwhatgoesoninsidethemindsoftheirdogs.Inoneofthegame-liketests,thedogswatchedastheirownerhidfoodu...