Dolphins: Close Encounters

Fraser's. Hector's. Spinner. Rough-toothed. Bottlenose. They are just a few of the nearly three dozen species of dolphin that glide through the earth's oceans, at home in a watery world most air-breathing mammals would find hostile. But as NATURE's <em>Dolphins: Close Encounters</em> shows, these small whales have proved remarkably rugged and intelligent.

Premiered March 8, 1992