Horizon - Man and Science Today

For divers, seamen, and most often bathers, the word shark in many parts of the world spells danger, sometimes death. Not all species are dangerous, but some are killers. Why is this? At laboratories in the United States and Australia scientists are trying to find the answers. Especially, how are sharks able to detect a swimmer from great distances, and why do they attack some and not others?
Tonight Horizon presents an Australian film which examines our attempts to understand one of the oldest inhabitants of the sea, and perhaps learn from the shark how we may live in the ocean environment.

(Colour)