{"fact":"Crows can learn to tell the difference between shapes like triangles and squares, and they can even apply this knowledge to completely new shapes they've never seen before!","context":"All of the jungle crows learnt to discriminate between the triangle and square during training. The discrimination performance was generally not affected either by changes in the colour of the stimuli or when both shape and colour cues conflicted… In addition, crows significantly discriminated novel triangular shapes during the limited trials given, suggesting their ability to form the concept of triangularity.","source":"Bezawork Afework Bogale; Shoei Sugita, Shape discrimination and concept formation in the jungle crow (Corvus macrorhynchos), 10.1007/s10071-013-0642-y","index":352}