In the final programme of the series, explorer Paul Rose, marine biologist Tooni Mahto and underwater archaeologist Frank Pope explore our busy southern shores.

A look at the rapidly changing environment of the waters of the UK\'s eastern coastline.

In the second programme in the series, explorer Paul Rose, marine biologist Tooni Mahto and maritime journalist Frank Pope explore the wild seas around Scotland.

David Attenborough asks three key questions: how and why did Darwin come up with his theory of evolution? Why do we think he was right? And why is it more important now than ever before?

Astronomer Carl Sagan leads us on an engaging guided tour of the universe, bringing such topics as Einstein\\\'s theory of relativity and Darwin\\\'s theory of evolution down to a layman\\\'s level of understanding. The first episode opens with a description of the cosmos and introduces the iconic \\\'Spaceship of the Imagination\\\'

Andrew Marr explores how Darwin's theory of evolution by natural selection has taken on a life of its own far beyond the world of science

In the first episode of the three-part series, Andrew Marr explores how Darwin\'s theory of evolution by natural selection has taken on a life of its own far beyond the world of science.

Andrew Marr discovers something surprising about his own evolutionary history as this epic series continues with an exploration of Darwin\'s impact on politics and society.

In the final episode of this ground-breaking series about Charles Darwin\'s legacy, Andrew Marr discovers how Darwin\'s ideas are helping us to save ourselves and all life on earth from extinction.

Documentary telling the little-known story of how Darwin came to write his great masterpiece, On the Origin of Species, a book which explains the wonderful variety of the natural world as emerging out of death and the struggle of life.

In fifty years of broadcasting, Sir David Attenborough has travelled the globe to document the living world in all its wonder. Now, in the landmark series, David Attenborough\'s First Life, he completes his journey by going back in time to the roots of the tree of life, in search of the very first animals.

In a purpose-built dissection lab, Dr George McGavin is joined by leading anatomy experts to dissect a real foot, taking it apart layer by layer to reveal what makes it unique in the animal kingdom.

In a purpose-built dissection lab, Dr George McGavin is joined by leading anatomy experts to dissect a real hand, taking it apart layer by layer to reveal what makes it unique in the animal kingdom.

Dallas Campbell delves in to the Horizon archive to discover how our ideas about dinosaurs have changed over the past 40 years.

David Attenborough travels to the end of the earth, taking viewers on an extraordinary journey across the polar regions of our planet, North and South.

Spring arrives in the polar regions, and the sun appears after an absence of five months; warmth and life return to these magical ice worlds - the greatest seasonal transformation on our planet is underway.

It is high summer in the polar regions, and the sun never sets. Vast hordes of summer visitors cram a lifetime of drama into one long, magical day; they must feed, fight and rear their young in this brief window of plenty.

For the animals in the polar regions, autumn means dramatic battles and epic journeys. Time is running out - the Arctic Ocean is freezing over and the sea ice is advancing at 2.5 miles per day around Antarctica.

There is no greater test for life than winter, as temperatures plummet to 70 below and winds reach 200kph. Darkness and ice extend across the polar regions and only a few remarkable survivors gamble on remaining.

David Attenborough reveals the vast wildnerness of the polar regions and their inhabitants. At the North Pole, the sun returns after six months of darkness.

David Attenborough journeys to both polar regions to investigate what rising temperatures will mean for the people and wildlife that live there and for the rest of the planet.

This Frozen Planet special brings together the very best highlights of the series, taking viewers on a spectacular journey through the entire polar year - from the depths of winter to the melting world of the polar summer.

What's really going on inside your stomach? In this documentary, Michael Mosley offers up his own guts to find out. Spending the day as an exhibit at the Science Museum in London, he swallows a tiny camera and uses the latest in imaging technology to get a unique view of his innards digesting his food. He discovers pools of concentrated acid and metres of writhing tubing which is home to its own ecosystem.

The heart is the most symbolic organ of the human body. Throughout history it has been seen as the site of our emotions, the very centre of our being. But modern medicine has come to see the heart as just a pump; a brilliant pump, but nothing more. And we see ourselves as ruled by our heads and not our hearts.

Changes to the bacteria that live inside all of us are responsible for increasing the number of people with allergies, suggests new research.

We are in the grip of an allergy epidemic. 50 years ago one in 30 were affected, but in Britain today it is closer to one in three. Why this should be is one of modern medicine's greatest puzzles.

The search for extra-terrestrial life has been going for 50 years - but there's been a recent breakthrough. Astronomers have discovered a new planet called Gliese 581 c. It is the most Earth-like planet ever found. It orbits a star and may have habitats capable of supporting life. NASA hopes to find 50 more Earth-like planets by the end of the decade, all of which increases the chance that alien life has begun elsewhere.

Dr Alice Roberts asks one of the great questions about our species: are we still evolving? Alice follows a trail of clues from ancient human bones, to studies of remarkable people living in the most inhospitable parts of the planet, to the frontiers of genetic research to discover if we are still evolving - and where we might be heading.

What makes us good or evil? It's a simple but deeply unsettling question. One that scientists are now starting to answer.

Touch, sight, smell, hearing and taste - our senses link us to the outside world. Dr Kevin Fong looks back through 40 years of Horizon archives to find out what science has taught us about our tools of perception - why babies use touch more than any other sense, why our eyes are so easily tricked.