A series of wild-life programmes introduced by Peter Scott.

Peter Scott and Leo Harrison Matthews, with the help of film illustrations, discuss the history, habits, and present status of the largest and most widely distributed of the world's mammals.
Whales have adapted themselves so successfully to aquatic conditions that they are the only mammals to spend their entire lives at sea. Their vast size and inaccessibility have made them particularly interesting to naturalists and seafarers.
From the BBC's West of England television studio