A cat’s tongue isn’t like a humans or a dogs. It feels like sandpaper and is very rough. The roughness of the tongue is due to the papillae on their tongue, which are basically tiny, backward-facing barbs made of keratin. Keratin is the same stuff that’s found in humans fingernails. The ones in the center of the tongue are longer than the ones on the sides and are all covered in a very strong keratin sheath. The papillae is used by cat’s to groom their fur. It helps pick out dirt and debris from the cat’s fur to make it look nice and straight. In addition, it’s used to rip the flesh from the bones of their prey when they eat them. Cat’s have fewer taste buds and sadly they can’t taste sweets. Since cat’s are carnivores, their taste buds probably have not evolved to detect sweet flavors. Luckily dental disease is one of the primary health concerns in many adult cats, meaning their teeth are already bad enough without sugar. Also, cats drink differently than dogs by using gravity and inertia. Cat use the tip of its tongue to pull water upward, closing its jaws before gravity pulls the column of liquid back toward earth.