flutterby
Fly away!
Results suggest impressive proto-arithmetic capacities in the young and relatively inexperienced chicks of this precocial species.
http://rspb.royalsocietypublishing....er (SID)=773b143a-f4c6-4016-a0d5-5f6e908a5cb6
Gcvmom, you already knew your chicks were smart, didn't you?