Nature Season 30 Episode 10 - Ocean Giants: Part Three - Voices of the Sea

Airdate: 2012-Feb-22

Episode summary:

The role of sound for whales and dolphins. Included: the songs of humpback whales, which can carry for thousands of miles; the echolocation abilities of sperm whales.

About Nature series:

Nature is a wildlife documentary program that has been airing on PBS since 1982. Its longevity is explained partly by its quality; Nature has won n...Show more >