How Do Dogs Drink Water?
Dogs lap water to drink. Unlike humans, dogs do not have fully developed cheeks. This means they drink differently because they could not create suction to take in water. Dogs instead, they have developed a system using their tongue to drink. They bend their tongue backward in a ladle-like shape to pull out water into the air. The instant acceleration causes a difference in pressure on the water which forms a column to suspend in the air just enough for the dog to snap their jaws to catch. From the time their tongue exits the mouth which is up to 4 mph to the moment they bite the water only takes about 50 milliseconds. With each lap of water taking around 1 to 2 milliliters, which means dogs can drink up to 300 ml in just 1 minute. Cats also use their tongue in the same fashion when drinking water.