Unnatural Selection

A thrilling expedition across Bolivia in search of the most venomous snakes in this remote country. The main goal is to discover a new species unknown to science: a large pitviper that has not been classified yet. It will be tracked down and filmed alive for the first time. Spanish herpetologists Juan Timms and Jairo Cuevas embark on a perilous expedition across remote Bolivia, determined to capture the country's most venomous snakes. Their ultimate prize? Discovering a new, unclassified species of massive pitviper, known only from a single photograph.

Attention please! Are you ready for an adventurous tour through the human body? With a lot of humour, our physical appearance is being introduced from head to toe along cells and organs in an educational way. The heart, blood, nerves and kidneys, each single one is a miracle which renders life possible.

Series which tells the story of how people came to understand the natural order of the plant world, and how the quest to discover how plants grow uncovered the secret to life on the planet.

Geologist Iain Stewart explain in three stages of natural history the crucial interaction of our very planet's physiology and its unique wildlife. Biological evolution is largely driven bu adaptation to conditions such as climate, soil and irrigation, but biotopes were also shaped by wildlife changing earth's surface and climate significantly, even disregarding human activity.

The Body Machine is a landmark special on the human body that shows us just how much, how many, how large, how strong, how fast - just how amazing the body really is. Utilizing impressive large-scale real-life stunts, CGI and strong character stories, the show makes the staggering scale of the inner workings of the body tangible. We will show you how far our blood travels in just one day - an astounding 19, 000 km - from Quebec City to Buenos Aires and back. You will see all the cranial fluid you produce in your lifetime laid out in front of you - all 26,280 pint glasses worth. And in just one day you will take 23,000 breaths - enough air to fill 7,714 helium balloons. You will see all this and much more.

David Attenborough embarks on a remarkable 500 million-year journey revealing the extraordinary group of animals that dominate our world, and how their evolution defines our human bodies.

A five-part series that features the latest research exploring how early humans evolved. See how the mixing of prehistoric human genes led the way for our species to survive and thrive around the globe. Archaeology, genetics and anthropology cast new light on 200,000 years of history, detailing how early humans became dominant.

A series of very short films inspired by the amazing and often bizarre sexual practices of insects and other creatures.

Everyone born from a donor might have siblings they had no idea existed, who were born from the same stranger. Here, a man gets instant results putting his DNA on websites.

The Human Body is a seven-part documentary series that looks at the mechanics and emotions of the human body from birth to death.