The Ordovician • 2019 • episode "1/2" • Ancient Oceans

58:14

This is a land where the tea comes with added elephants, gibbons sing to greet the morning, tigers dance and lions roam.

1/2 • India: Nature's Wonderland • 2015 • Nature

59:03

Documentary series delving into a rarely seen South American wilderness, home to surprising creatures who survive in environments that range from the mighty Andes Mountains to Cape Horn. From the Andes peaks, we follow the path of the relentless wind, sweeping east through Patagonia's dry desert. We discover a weird world of maras - giant guinea pigs - and desert-dwelling penguins, and witness the first faltering steps of baby guanacos - Patagonia's very own camels. People live here too - brave souls who have taken on this arid world and carved out a home.

2/3 • Patagonia: Earths Secret Paradise • 2015 • Nature

54:30

This programme looks at the evolution of fish. They have developed a multitude of shapes, sizes and methods of propulsion and navigation. The sea squirt, the lancelet and the lamprey are given as examples of the earliest, simplest types. Then, about 400 million years ago, the first back-boned fish appeared. The Kimberley Ranges of Western Australia are, in fact, the remnants of a coral reef and the ancient seabed. There, Attenborough discovers fossils of the earliest fish to have developed jaws. These evolved into two shapes of creature with cartilaginous skeletons: wide ones (like rays and skates) and long ones (like sharks).

5/13 • Life on Earth • 1979 • Nature

57:59

Blue Planet II explores parts of the ocean that nobody has ever visited, encountered extraordinary animals, and discovered new insights into life beneath the waves. In Our Blue Planet, Sir David Attenborough examines the impact of human life on life in the ocean. In this final episode, we uncover the impact that our modern lives are having on our best-loved characters from across the series, including devoted albatross parents unwittingly feeding their chicks discarded plastic and mother dolphins potentially exposing their newborn calves to pollutants through their contaminated milk. Scientists have even discovered that increasing noise levels may stop baby clownfish finding their way home.

7/8 • Blue Planet II • 2017 • Nature

43:58

Steve uncovers the historic secrets of seabirds in Yorkshire, Gillian finds out how we're stressing our sea creatures, and Chris meets a retired couple adding to shark science.

2/2 • Blue Planet UK • 2019 • Nature

47:53

The Cave of Swallows in Mexico is a 400m vertical shaft, deep enough to engulf the Empire State Building. The Lechuguilla cave system in the USA is 193km long and 500m deep with astonishing crystal formations hanging from its chambers. Although often overlooked, caves are remarkable habitats with equally bizarre wildlife. Cave angel fish cling to the walls behind cave waterfalls with microscopic hooks on their flattened fins. Cave swiftlets navigate by echo-location and build nests out of saliva. The Texas cave salamander has neither eyes nor pigment. Unique access to a hidden world of stalactites, stalagmites, snotites and troglodytes brings a wealth of surprises.

4/11 • Planet Earth • 2006 • Nature