The newest AsapScience videos delivers interesting rapid-fire trivia about man's best friends and debunks some myths. For example: dogs are not colorblind, they're just really dumb. I'm kidding! Dogs are super smart. Smarter than some doctors. Turns out, you can skip your next physical and just let your dog smell your urine. Next time Spot tries to take a deep whiff of your crotch, know it's because he's worried about your health and he loves you.