October 8, 1998
The program is about the natural history of this invisible world: the things that float in the air around us, the microbes that li...Read more
October 15, 1998
There is a growing number of people who regard marijuana (cannabis) as a benign medicine, offering relief to people suffering from...Read more
November 5, 1998
Episode 3 of Season 39 premiered on November 5, 1998
November 26, 1998
Episode 4 of Season 39 premiered on November 26, 1998
December 3, 1998
It is only recently that humans have become aware that animal communication is often elegant, elaborate and subtle. Understanding ...Read more