Nature
Ocean Giants "Giant Lives" (Part 1)
Wednesday, February 22, 8:00 pm ET

The great whales – such as the blue and the bowhead – are the largest animals that have ever lived on our planet. Yet these mighty leviathans feed on tiny shrimp and sardines. “Giant Lives” discovers why size matters in the world of whales.

Nature
Ocean Giants (3 parts)
Wednesday, February 22, 8:00 pm ET

Whales and dolphins remain a constant source of fascination. But how much do we really know about them? Whales and dolphins, known as cetaceans, may appear to be totally alien to us — but with their mental ability, group communication and the recent discovery that dolphins have individual names, they are closer to us than we ever imagined. This series provides new insights into the lives of whales and dolphins in a visually powerful, engaging and entertaining format. Two of the world’s top underwater cameramen — Doug Allan (“Planet Earth”’s polar specialist) and Didier Noirot (Cousteau’s front-line cameraman) — film breathtaking encounters. Teams of intrepid scientists equipped with the latest technology are making extraordinary breakthroughs in their understanding of these intelligent life forms — breakthroughs that may safeguard their survival.

Nature
Ocean Giants "Deep Thinkers" (Part 2)
Wednesday, February 22, 9:00 pm ET

In some respects the brains of whales and dolphins are more complex than ours. Whales and dolphins work co-operatively, show empathy and are self-aware. “Deep Thinkers” finds out how clever — and how much like us — whales and dolphins might be.