From the ArcaMax Publishing, Trivia Newsletter:
http://www.arcamax.com/news/trivia/s-416902-636494
Tuna swim at a steady rate of 9 miles per hour for an indefinite period of time -- and they never stop moving. Estimates indicate that a 15-year-old tuna travels one million miles in its lifetime.
This news arrived on: 09/26/2008