Natural World: Killer Whales: Beneath the Surface - Natural World

Series 32, episode 9

Directed by (unconfirmed)
Bill Markham

A look at research into the lives of the marine mammals, which were long regarded as fearsome predators until the first one was brought into captivity for study in 1964, revealing facts about their profound intelligence, social interactions and parental instincts. The programme illustrates how contemporary studies continue to unearth revelations about the whales' behaviour

Cast (unconfirmed)

Alec Newman
Roger Webb
Chris Cole
Bill Markham