Rats respond where it counts.
Taniuchi, Sugihara, Wakashima, and Kamijo (2016) report the surprising finding that rats can transfer numerical discrimination to novel objects. Further experiments show that rat numerical discrimination is flexible, as it can both count homogeneous and heterogeneous objects and omit an odd object.
['Roberts|William A|WA|']
D000818:Animals D003071:Cognition D051381:Rats D014163:Transfer, Psychology
Numerical processing Object recognition