January 30, 1999
Looks at the brief history of rain forest research.
February 13, 1999
Follows dolphins as they fight for mates, hunt food, and clash with other dolphin species.
April 10, 1999
A look at one tigress's struggle to raise cubs and survive in the wild.
May 2, 1999
Talks about understanding and surviving the lethal phenomenon known as the avalanche.
October 3, 1999
Depicts the impact a hurricane had on California's marine mammals and kelp forests.
December 22, 1999
Episode 6 of 1999 premiered on December 22, 1999
December 25, 1999
Off the coast of Israel, the oldest shipwrecks ever found in the Mediterranean offer clues to an ancient biblical civilization.
December 26, 1999
Episode 8 of 1999 premiered on December 26, 1999
December 29, 1999
Episode 9 of 1999 premiered on December 29, 1999