Have you ever seen a cat drink? If you have, don't you wonder why a cat drinks with its tongue?
A cat drinks by sticking its tongue in the milk, while the tip is pointing up. When the cat pulls its tongue out of the milk, it brings some milk with it. Cats drink so fast, the human eye can't see cats lap, drink with the tongue. A cat laps 4 times a second. Why doesn't a cat drink like a human? I'll tell you.
Humans have can close their mouth all the way, creating suction, discovered by Roman Stocker and Pedro Reis, two researchers at MIT, a school in Boston. They discovered this by using high speed cameras. Cats can't. If you want to learn more go to the New York Times. You can also see a video on the New York Times.