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Why dogs are such sloppy drinkers

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No matter which side of the dogs versus cats debate you’re on, one thing is for certain: It’s way more fun to watch a dog drink water. Because canines have floppy jowls instead of complete cheeks, they can’t generate suction with their mouths, so instead they’ve evolved the sloshy, lapping strategy everyone is familiar with. Now, using an array of high-speed cameras and mathematical models, physicists have teased out the fluid dynamics behind how dogs drink.

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