Charles Darwin and the Tree of Life

BBC The Natural World. In 2004, a team from the Planet Earth series captured the first ever film of a wild snow leopard in the mountains of Pakistan. For Nisar Malik, who led the expedition, these images sparked a passion that compelled him to return. With cameraman Mark Smith, he spent two years documenting the snow leopard's daily life, finally lifting the veil on the most elusive of all cats.

Takes us to locations all around the US and shows us the heavy toll that modern technology is having on humans and the earth. The visual tone poem contains neither dialogue nor a vocalized narration: its tone is set by the juxtaposition of images and the exceptional music by Philip Glass.

In East Africa, millions of animals are migrating over long distances. Among them is a young zebra who is trying to escape the fearsome predators that are an ever-present danger.

Although first glance reveals little more than stones and sand, the desert is alive. Witness moving rocks, spitting mud pots, gorgeous flowers and the never-ending battle for survival between desert creatures of every shape, size and description.

This documentary follows various migratory bird species on their long journeys from their summer homes to the equator and back, covering thousands of miles and navigating by the stars. These arduous treks are crucial for survival, seeking hospitable climates and food sources. Birds face numerous challenges, including crossing oceans and evading predators, illness, and injury. Although migrations are undertaken as a community, birds disperse into family units once they reach their destinations, and every continent is affected by these migrations, hosting migratory bird species at least part of the year.

Directed by award winning filmmaker Ben Masters, Deep in the Heart is a visually stunning celebration of Texas’ diverse landscapes and remarkable wildlife found nowhere else. Told through the eyes of wildlife species ranging from the mysterious blind catfish to the elusive mountain lion, the film follows our ever-changing relationship with the natural world and how we affect it. Narrated by beloved Texan, Matthew McConaughey, the film aims to safeguard our remaining wild places and to recognize the importance of Texas’ conservation on a continental scale.

Charlotte Uhlenbroek travels to Madagascar to follow the story of three mother ring-tailed lemurs struggling to survive one of the driest and hottest seasons in decades. One lemur has already lost her baby, the other two have a fight on their hands if their infants are to stand a chance, and matters are made even worse when neighbouring lemur tribes invade the mothers' territories.

Discover the evolutionary secrets of some of the world’s most majestic creatures. From voracious crocodiles and acrobatic birds to stupendous whales and majestic elephants, this documentary follows top scientists on a global adventure as they follow clues from the fossil record and change what we thought we knew about the evolution of iconic beasts.

Seldom seen and very rarely filmed in their natural environment, Lumholtz tree kangaroos are the ghosts of the north Queensland forests. This film follows the intimate lives of these tree-climbing specialists in the wilderness of the Atherton Tableland.

A feature documentary about the journey of mankind to discover our true force and who we truly are. It is a quest through science and consciousness, individual and planetary, exploring our relationships with ourselves, the world around us and the universe as a whole.

Commentator-comic Bill Maher plays devil's advocate with religion as he talks to believers about their faith. Traveling around the world, Maher examines the tenets of Christianity, Judaism and Islam and raises questions about homosexuality, proof of Christ's existence, Jewish Sabbath laws, violent Muslim extremists.

In Astronomy Part 2, you will learn all about the planets, asteroids, comets, meteoroids, the layers of the sun, fusion, and more. The Standard Deviants make learning astronomy easier with their unique teaching style, which incorporates humor, mnemonics, and sophisticated computer graphics.

Physics is a system of models of nature according to which all phenomena are explained in terms of matter and force. Sound confusing? It doesn't have to be! Whether you need help with high school physics, need to review for a college physics class, or you're studying for the AP Physics Exam, this physics tutorial will help you understand the basics, such as Newton's Laws, the Law of Universal Gravitation, Kepler's Law and more.

Sir David Attenborough unveils the two stunning underwater realms of Saudi Arabia - the flamboyant Red Sea and the contrasting hot muddy Gulf, capturing for the first time the rare event of Palolo worms spawning at night.

Impressive family film offers a unique stories of the wonderful animals who inhabit the Aldabra atoll, were born here, create communities, give birth to young and struggle for their survival.