Michael Phelps is faster than a flounder. He swims about 6 mph. But what if he was fighting currents, swimming upstream, and jumping dams?
View More Who's faster: Phelps or flounder?Michael Phelps is faster than a flounder. He swims about 6 mph. But what if he was fighting currents, swimming upstream, and jumping dams?
View More Who's faster: Phelps or flounder?