In this study, an inbred line of older, very similar beagle dogs were taught how to find a food treat by identifying certain markers, such as a yellow wooden peg.

 
  • 在此次调查中,一群年长的类似于小猎犬的狗被教导如何通过辨别某种记号来找到食物,例如黄色木栓。
今日热词
目录 附录 查词历史