Dogs and horses can form a really strong bond, especially if the two are brought up together at a horse farm. Both of these creatures:

Enjoy outdoors
Enjoy playing and running
Enjoy food
Love affection and humans
Get along well with a variety of other animals (such as goats, cats, sheep, etc.)
Plus, you can teach both of them super fun tricks. However, it’s not true for all dog breeds. Smaller-sized dog breeds might be afraid of horses.