>The core difference between humans and animals is that humans can reason; we possess cogitative powers. I agree that human language makes it possible for huma

>The core difference between humans and animals is that humans can reason; we possess cogitative powers. I agree that human language makes it possible for human beings to do all sorts of cognitive things that animals can't. That said, you are making the term "reason" have a single meaning, whereas there are actually many types of cognitive activity, some of which animals can do, and some of which they can't. You really need to be more specific about the different types of reasoning, and each different type of reasoning should get a distinctive label.