re: Why are dogs in the country of Mexico different?

I used to work as a fishing guide down in Patagonia. There was one particular lunch spot where this dog would wander down from the farmers shack and beg for food. One day I was shooing it away, in Spanish naturally. Dumb lady in my boat that day hollers at her husband “Bob you gotta get over here this dog can understand Spanish. I’ve never seen a bilingual dog before!”