Betsy was one of two dogs (both of which were Border Collies) whose intelligence was beyond that of Rico, also a Border Collie, who knows over 200 words.
Betsy là một trong hai con chó (cả hai đều thuộc giống chó Border Collies) có trí thông minh vượt xa Rico, cũng là con chó giống Border Collie biết hơn 200 từ.