National Geographic Specials 1980: Episode Guide & Ratings

1 hour-long TV special about deep sea exploration of the Galapagos Rift (1980).

Examines the chemical and genetic components of mental disorders and shows some of the latest biomedical research into the mysteries of the brain.

There are invisible things that the human eye cannot perceive because they are too small, too large, too fast, too slow, or beyond the spectrum of visible light.

A look to the past when ocean liners such as the Queen Mary and the Normandie ruled the Atlantic, setting standards of taste, luxury, and efficiency.

Filmed at Namibia's Etosha National Park this video takes a look at a wide selection of wildlife, including zebras, cheetahs, wildebeest, lions and elephants.