Here is a way for you to think about it better. When I train a horse how to ride a certain way, that horse has to learn "more" about his own body. Horses are designed to basically crawl across the ground using their front legs the most. They are much heavier on their front feet because of this. They can go very fast this way and that is what most of them just learn how to do. However, when they carry a human being, they have to learn more about their bodies because they have to develop the strength to actually carry the weight of a human being. They cannot just crawl across the ground with their front end, after a while they would become lame if they did that. So they have to learn how to find their hind legs, how to slowly develop the ability to get their hind legs underneath them more and that also develops a stronger back and even neck muscles too. Amazingly, a horse can learn a great deal about it's own body, and can really do some amazing things with human beings too.

The brain of a horse is only the size of a walnut.

Something to think about next time you may think you cannot "learn".