Hunger at Sea (Oceans) • 2015 • episode "4/7" • The Hunt

50:03

The final programme looks at the superorganisms formed by bees, ants and termites. Attenborough reveals that their colonies, whose individuals were once considered purely servile, are "full of conflict, power struggles and mutinies." They evolved when such creatures moved away from a solitary existence and started building nests side-by-side, which led to a collective approach to caring for their young.

Part 5 • Life in the Undergrowth • 2005 • Nature

4:17

Traveling is extremely arduous for microscopic sperm -- think of a human trying to swim in a pool made of...other humans.

TED-Ed • Nature

43:58

The Nile has many sources. This episode looks at the headwaters in the Great East African Rift Valley and the Rwenzori Mountains' melting snow.

1/3 • Wild Nile • 2014 • Nature

56:23

Living with sharks is one of Andy Brandy Casagrande greatest passions in life. A two-time, Emmy Award winning, wildlife cinematographer and on-air talent for Discovery Channel’s Shark Week, Andy is helping revolutionize the way the world sees the ocean’s top predators.

2015 • Nature

59:05

Chris Packham looks at the annual miracle of the temperate forest.

3/4 • Secrets of Our Living Planet • 2012 • Nature

58:53

Professor Richard Fortey travels to northeastern China to see a fossil site known as the 'Dinosaur Pompeii' - a place that has yielded spectacular remains of feathered dinosaurs and rewritten the story of the origins of birds. Among the amazing finds he investigates are the feathered cousin of T-rex, a feathered dinosaur with strong parallels to living pandas and some of the most remarkable flying animals that have ever lived.

2/3 • Fossil Wonderlands: Nature's Hidden Treasures • 2014 • Nature