With all the wonderful skills dogs can learn, there is one thing they cannot do. Dogs cannot see colors. As a matter of fact, monkeys and apes are the only animals that can see colors.
Do you ever feel like you cannot do something because you are too small, too clumsy, or too young? Well, next time you do, remember the dog and how he can retrieve objects, guide the blind, track lost people all without being able to distinguish colors.