Okay thank you. All I wanted was proof. Now I know and I appreciate the article. I am sorry for what you had to do, but I'm inquisitive I suppose. It's like how I don't get that dogs can't see colors. How do you truly know? It sounds like an anesthetic should be used to prevent pain though. Unless killed within a tenth of a second. Thanks for the info
Dogs can see colours just not in a full spectrum like we can.