Facts About Dogs Tongue You Did Not Know MyFurries Blog Why Does My Dog Snore So Much? Dog Teeth Chattering: Causes and What To Do PetMD Dog Language: 12 Noises Your Dog Makes and What They Mean Ever seen a dog flick their tongue and vibrate their jaw after sniffing something interesting? This is called the Flehmen response. It's a special technique dogs use to enhance their sense of Why Does My Dog Sleep With His Tongue Out (Explained & Answered)