"Border collie comprehends object names as verbal referents"

 Four experiments investigated the ability of a border collie (Chaser) to acquire receptive language skills. Experiment 1 demonstrated that Chaser learned and retained, over a 3-year period of intensive training, the proper-noun names of 1022 objects. See the Full Text Article at Science Direct.

"Border collie comprehends object names as verbal referents"

 John W. Pilley, Alliston K. Reid, 

 Behavioural Processes, 

Volume 86, 

Issue 2, 

February 2011