rambo6986 t1_izvd3bp wrote
Why can't they suck?
x_lincoln_x t1_izvvkvu wrote
Because Dogs rule, cats suck.
kmn493 t1_izw9rnu wrote
Their mouths are large and unsealed. Humans have a tiny gap at the front. Dogs' gap starts all the way in the back of their jaw. See this image for reference. The surface of the water would have to be all the way back there before they could get the suction. So their entire muzzle (including their nostrils) would have to be under water.
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