By telling the story of our organs, this documentary makes us aware of an evolutionary timeline. Our nose is 40 million years old, our coccyx 25 million, our fingers 370 million, while our chin is only 200,000 years old!
Our body is a true time machine. It is a mirror of the history of the living world. If an engineer today had to fabricate the ideal human, he would most likely not design us the way we are currently made. He would go to the most logical, the most efficient, the most rational; and when you look closely, this is not always what characterizes us.
2018 • Nature
The first episode tells how invertebrates became the first creatures of any kind to colonise dry land. Their forerunners were shelled and segmented sea creatures that existed 400 million years ago. Some of them ventured out of the water to lay their eggs in safety, and Attenborough compares those first steps with today's mass spawning of horseshoe crabs off the Atlantic coast of North America.
The leatherback sea turtle is a magnificent creature that can be found in Atlantic, Pacific, and Indian Oceans. This ancient species swims faster, travels further, and dives deeper than any other reptile on the planet. In the Atlantic, they migrate every year from their nesting grounds in the Caribbean to the chilly waters off the east coast of Canada where they feast on jellyfish. This epic annual journey – at a staggering 12,000 km – is the longest for any reptile in the world.
A Dog’s Life reveals how our best friends perceive the world - from the moment they take their first morning walk to the time they curl up at our feet to go to sleep. We accompany Daisy, a Jack Russell Terrier, through an average day and on the way discover that, while dogs are not miniature humans, they are amazingly well adapted to life with us. But how well do we know them? A Dog’s Life explores the widely assumed facts that may actually be based on faulty and out-dated research. Is your dog really like a wolf? Does she need you to be the “alpha” dog, so she knows where to fit into your pack? Do they really see in black and white? Is it true that dogs have an amazing sense of direction?
The world's cities are growing at a faster rate than any other habitat on the planet. And while most of us imagine them to be concrete jungles devoid of nature, for animals of all shapes and sizes they are just a new habitat filled with new and surprising opportunity. With similar needs to humans, these wild animals face similar challenges, and like us, if they play their cards right, they can find everything they need in the city. With the natural world shrinking, and our urban centres continuing to grow, adapting to life in the city has never been more important. This first episode examines what it takes for these wild residents to thrive in the newest and fastest changing habitat on the planet. From smooth-coated otters at home in Singapore and huge colonies of megabats in Adelaide to reticulated pythons living on the streets of Bangkok, experience our cities through fresh eyes - the eyes of the animals that live in them, and discover a wilder side to a world we think we know.
Going down into these narrow flooded passageways is not for the faint-hearted but, with only an estimated one percent of the caves explored, it is an opportunity for the team to write themselves into cave diving history, by pushing further in than anyone has before. This is a challenge that tests even the most accomplished cave divers. Steve must face the terrors of being lost in an underwater silt cloud in a cave. But there is a bigger issue at stake. All life in the Yucatan depends on the fresh water in this network of caves, but it's being contaminated by human development. With every metre the team maps, it adds to the knowledge of the system, which, in turns, helps protect it for future generations.
Horizon explores the secrets of what makes a long, healthy and happy life. It turns out that a time you can't remember - the nine months you spend in the womb - could have more lasting effects on you today than your lifestyle or genes. It is one of the most powerful and provocative new ideas in human science, and it was pioneered by a British scientist, Professor David Barker. His theory has inspired a field of study that is revealing how our time in the womb could affect your health, personality, and even the lives of your children.