You probably have seen or had a dog that barks at cats right? Well this isn’t because they hate cats it’s because they may think of a cat as a threat or they just want to play. Why do some dogs not bark at cats? Well that’s because either that dog is very shy or they were introduced to cats in their early years. This is why many other animals like a animal out of it’s own species. It’s because they’ve seen that other species since they were little. If you have a dog that enjoys cats company then they were introduced to cats a early year.