Air has 750 times less density as the oceans, yet so many of the same principles apply there as well. We are quite familiar with marine life and the performance abilities of sharks, dolphins, penguins, fish, alligators, etc. Mankind is quite fascinated by marine life and often tries to use these observations to create devices to serve him.A Great White Shark can swim 7 times as fast as the Olympic swimmers in Athens taking the gold this year, yet it is not even close to being the fastest in the .