If you have ever wondered what would happen in your own home if you were taken away and everything inside was left to rot, the answer is revealed in this programme which explores the strange and surprising science of decay. For two months, a glass box containing a typical kitchen and garden was left to rot in full public view within Edinburgh Zoo. In this resulting documentary, Dr George McGavin and his team use time-lapse cameras and specialist photography to capture the extraordinary way in which moulds, microbes and insects are able to break down our everyday things and allow new life to emerge from old. Decay is something that many of us are repulsed by, but as the programme shows, it's a process that's vital in nature. And seen in close up, it has an unexpected and sometimes mesmerising beauty.
Plants are able to communicate with each other in ways we are only now beginning to understand. Some plants can differentiate between roots of their "family" and roots of other kinds of plants when they touch underground. See how plants "talk" to each other and find out what they talk about!
Hummingbirds represent one of nature's most interesting paradoxes - they are the tiniest of birds, yet they qualify as some of the toughest and most energetic creatures on the planet. New knowledge gained from scientists currently making great breakthroughs in hummingbird biology makes this a perfect time to focus on these shimmering, flashing jewels of the natural world. Stunningly beautiful high-definition, high-speed footage of hummingbirds in the wild combined with high-tech presentations of their remarkable abilities help us to understand the world of hummingbirds as we never have before.
David Attenborough takes a breathtaking journey through the vast and diverse continent of Africa as it has never been seen before. Part 1: Kalahari In Africa's ancient south west corner, two extraordinary deserts sit side by side. Water is in short supply, yet these deserts are somehow full of life because the creatures that live here have turned the rules of survival on their head. This film celebrates nature's ingenuity, no matter how tough it gets. In the Kalahari scrublands, clever meerkats are outsmarted by a wily bird, solitary and belligerent black rhinos get together to party and giant insects stalk huge flocks of birds. Rain almost never falls in the Namib - instead it must make do with vaporous, vanishing fog. The creatures in this, the world's oldest desert, have gone to the extremes, as spiders wheel to escape and a desert giraffe fights to defend his scant resources in the greatest giraffe battle ever filmed.
Grasslands cover one quarter of all land and support the vast gatherings of wildlife, but to survive here animals must endure the most hostile seasonal changes on the planet. From Asia's bizarre-looking Saiga antelope to the giant anteaters of Brazil, grassland animals have adapted in extraordinary ways to cope with these extremes. In the flooded Okavango, lions take on formidable buffalo in epic battles, on the savannah bee-eaters take advantage of elephants to help catch insects and, on the freezing northern tundra, caribou embark on great migrations shadowed by hungry Arctic wolves.
In this second episode we travel from January to the March equinox. Kate Humble gets closer to the Sun than she has ever been before, whilst Helen Czerski visits a place that gets some of the biggest and fastest snowstorms on Earth.