The show, narrated by Tom Hanks, offers glimpses of critters large and small. And capturing that footage is no small feat.

The blue whale is the largest animal ever known to have lived on Earth. Blue whales are largest of all baleen whales and are found worldwide. They have a long slender body with a proportionally ...

Blue Whale songs consist of an A call, a series of pulses, followed by a long, low moan called the B call. This A-B sequence is repeated over and over again, approximately once every 130 seconds.

A major new live series celebrating the wildlife success story of Monterey Bay, California. Once ravaged by humans, now everything's returning from Sea Otters to Blue Whales.