The Nature of Things (1960)

Season 12: Episode 5

The life history of the seal, currently the object of the great spring seal hunt; the physiology and behavior of this unusual Arctic animal, plus an examination of its 8,000-mile migration from Hudson Strait to the Gulf of St. Lawrence and back. Also a look at the seal's unique adaptation for deep diving, currently under study by biologists at the University of Guelph in Ontario