Freshwater: Timing Is Everything • 2021 • episode "S1E4" • The Mating Game

177:00

Discover a land of hauntingly beautiful coasts, magical forests, and volcanic and arctic extremes - and the lynx, orcas, puffins and wolves who call this frozen kingdom home. Chapter 1: Life on the Edge Wild and unpredictable, the Scandinavian coast is a place of haunting beauty and dangerous extremes - a journey from storm-swept islands crowded with seal pups to 3,000ft deep fjords where sea eagles fly and base jumpers parachute from the edge. In the far north, tropical currents and Arctic seas collide, creating riches - billions of herring tracked by orcas and humpback whales - while providing a home to thousands of seabirds, including the feisty puffin. Chapter 2: Heartlands Great forests form the heart of Scandinavia, stretching towards the Arctic and cutting through with a labyrinth of waterways. Incredible creatures like lynxes, wolves, bears and reindeer must survive the ever-changing seasons - from the chilling grip of winter to the warm riches of summer. Here, all life is deeply interconnected through surprising and ancient partnerships, creating a balance that has evolved over millennia. Chapter 3: Ice and Fire Scandinavia's northern extremes have been shaped by ice and fire, but it's the sun that reigns over these frozen kingdoms. Here, musk oxen, polar bears and arctic foxes must endure the long, dark polar night, but in spring, the sun's return ignites a dramatic transformation in the landscape and heralds the return of thousands of migrant visitors. Under the midnight sun, the north bursts into a sleepless rush of life and opportunity, a race against time to raise a family, but for some, it's the summer heat which brings the greatest dangers before the first frost and winter's welcome return.

2023 • Nature

59:06

This episode reveals how mammals developed from tiny nocturnal forest dwellers to the dominant form of life on the planet following the death of the dinosaurs. David explains how the meteoric rise of mammals led to an astounding diversity of life and laid the foundations for the ascent of man.

Part 2 • Rise of Animals: Triumph of the Vertebrates • 2013 • Nature

22:19

Here we discover that some animals are able to trick others into believing they are something that they are not. The art of deception is a powerful attribute for some.

S2E4 • Natural Curiosities • Nature

51:19

Blue Whisper immerges into the ocean's fascinating underwater world and gets to the bottom of a widely unexplored field of underwater science: the communication among fish. The documentary accompanies a team of specialists to overwhelmingly beautiful coral reefs, ancient shipwrecks in the Mediterranean Sea and sunken submarines that are clouded in secrecy, to explore the versatile forms of underwater communication. What language do fish use? Do they make sounds? Do they have a body language? And what role do colours play? With the aid of complex underwater video and audio equipment those and further questions are answered during a suspenseful journey around the world.

2013 • Nature

59:07

More than a billion people around the world commute into cities each day, and they are not alone. The world's wildlife is commuting too. A steady flow of animals journey in and out of cities to find food and shelter or to start a family. Leaving the wilderness they must overcome the unique challenges that the urban world throws at them to benefit from the opportunities on offer. This episode explores whether the secret to an animal's success in this fast-changing world is to keep one foot in the wild and one in the city, becoming a wild commuter. It seems that all over the world animals are finding that the city can offer opportunities that are harder to come by in the natural world. Some, like African penguins, whose population has plummeted by 80 per cent in the last 50 years, find shelter in the city. By nesting in Cape Town they are safer from predators, and with relatively easy access to their fishing grounds they have the best of both worlds. Many other animals commute into cities because they are filled with food. In St Lucia, South Africa, that includes hippos. Able to eat up to fifty kilograms of grass in a single sitting, they have developed a taste for the short, manicured lawns and come to town every night to dine out. St Lucia's human residents have learnt to give the hippos the space they need during their night-time raids. Black bears need to eat more than 20,000 calories a day to survive their six-month hibernation through winter, and using their acute sense of smell they can easily track down leftovers. In North America they come into towns and cities in search of food. Many animals displaced from their natural habitat are now using their wild skill set in the city to help fulfill their needs. Could this be the beginning of a new and very modern migration?

S1E2 • Cities: Nature's New Wild • 2018 • Nature

29:07

The first episode introduces the viewers to the continent of Antarctica and the surrounding sea and islands, its glaciers and the icebergs that form from it. It describes how the continent changes throughout the seasons, as it effectively doubles in size in winter when the surrounding sea freezes over, "the greatest seasonal change that takes place on this planet".

S1E1 • Life in the Freezer • 2003 • Nature