Death Valley may seem an unlikely habitat for a fish, but the Devil's Hole pupfish has managed to thrive here for thousands of years.

(Airs Sunday, August 29) Marine biologist Rick Rosenthal set out to capture on film the biggest, fastest, most dangerous gamefish in the sea -- the ancient creatures known as billfish.

When Hurricane Katrina struck New Orleans, more than 250,000 pets were left stranded by the storm's destruction.