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Penguins Can Swim Up to 17 Miles Per Hour
What evolution took away from penguins in terms of flight, it gave back when it comes to swimming ability. Their vestigal wings are now powerful flippers that can propel them through the water at incredible speeds. Penguins typically idle around at 4-7 miles per hour. But, when an orca or leopard seal is stalking them, they step on the gas and can hit speeds as high as 17 miles per hour!
