Bright Dog Rico the Border Collie demonstrated his linguistic prowess by fetching toys on the German game show Wetten, dass…? (Bet That). Rico reportedly knew 200 different words (Kane, 2004, June 10). More recently, researchers trained another Border Collie by the name of Chaser to recognize the names of 1,022 objects (Pilley & Reid, 2011).

Rolf Haid Deutsch Presse Agentur/Newscom