"Chickens have even demonstrated the ability to count! Vallortigara and Regolin with Rosa Rugani of the University of Padua, trained chickens to peck for food at the fourth container in a series of ten containers. They then changed the spacing between the containers so that they were all in different positions. The chicks, however, were still able to select the fourth container, meaning they were able to identify the container through counting rather than relying on its location. The researchers proved the chickens' ability to count in other experiments as well." (Amy Hatkoff, The Inner World of Farm Animals [Steward, Tabori & Chang, New York, 2009], p. 33.)

Comments