A series of four programmes dealing with the senses of animals.
Introduced by W.E. Swinton, Ph.D.

Some members of the animal kingdom feel substances with one part of their body, others are touch sensitive all over. Touch is only one of the senses used by animals moving about in their own world. How do these find food at a distance and communicate with each other about where food is to be found? How do bats avoid obstacles in the dark? How do birds find their way on migration, and how does a dog find its way home?
Guest speaker: John Carthy, Ph.D.

From the BBC's West of England studio