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Alice ventures to the parts of the northern hemisphere, hit hardest by the cold - Europe and Siberia. High in the mountains of Transylvania, a cave sealed for thousands of years reveals grisly evidence for a fight to the death between two staving giants, a cave bear and a cave lion. Yet Alice discovers that for woolly rhinos and woolly mammoths, the Ice Age created a bounty.

Even after thousands of years of ice crushing the northern hemisphere and temperatures of 20 degrees lower than those of today, many of the great giants of the ice age still walked the earth. It was only when the world had warmed up again that mammoths, woolly rhinos, sabre-toothed cats and giant ground sloths finally became extinct. Professor Alice Roberts sets off on her last voyage back to the

Special effects-filled documentary beginning 49 million years ago. The world is heavily forested and birds rule the planet, preying on small mammals. Whales have not yet evolved and their ancestors walk on the land.

A pregnant basilosaurus, an 18-metre, carnivorous whale which lives in the Tethys Sea, is forced to kill the young of a smaller whale to ensure the survival of her unborn calf.

Going back 25 million years to the time of the indricothere, which was the largest mammal ever to live on dry land, being seven metres high and weighing 15 tons! The only threat to an adult would have been the hyaenadon which was the size of a rhino and had jaws that could crush a rock.

The beginnings of mankind can be traced back 3.2 million years to Ethiopia and the advent of Australopithecus, a type of ape which, like humans, was bipedal. These early members of the human family faced many dangers, including the sabre-toothed cat, malaria, and the 14-tonne delnotherium.

Revealing the exotic, oversized creatures that inhabited South America one million years ago, such as the deadly smilodon, the largest of all sabre tooth cats.

Looking at the depths of the Ice Age, following a group of mammoths who have been forced to travel south with the advent of winter. On a dangerous journey across the Alps, many become trapped in bogs or fall victim to predators. However, their most formidable enemies are waiting for them on their return journey - Neanderthals.

For thousands of years, downtown LA hid an indiscriminate killer. In one of the most surprising wildlife crime stories in the world, `Natural World' turns forensic detective to solve the mystery and unmask victims and killers.

According to new evidence, the Woolly Mammoth went on roaming until about the time the Pyramids were built.

The discovery of a 5,000-year-old male mummy in the Austrian Alps has enabled scientists to re-create a vanished world.

David Attenborough tells the story of the discovery and reconstruction in Argentina of the world's largest known dinosaur, a brand new species of titanosaur. Measuring 37m long - close to four London buses put end to end - and weighing 70 metric tons, it now holds the record as the biggest animal ever to walk the earth.

The earth split in India 66 million years ago in a disaster that may have caused the end of the dinosaurs.

Chris Packham is out to determine whether the Himalayan Yeti and the Sumatran Orang Pendek exist.

Journey back 40,000 years and discover the great beasts of the Ice Age with Professor Alice Roberts. Alice's Ice Age odyssey begins in the land of the Sabre-tooth, North America, a continent that was half-covered by ice, up to two miles thick. Yet, it also boasts the most impressive cast of Ice Age Giants in the world.

Alice ventures to the parts of the northern hemisphere, hit hardest by the cold - Europe and Siberia. High in the mountains of Transylvania, a cave sealed for thousands of years reveals grisly evidence for a fight to the death between two staving giants, a cave bear and a cave lion. Yet Alice discovers that for woolly rhinos and woolly mammoths, the Ice Age created a bounty.

Even after thousands of years of ice crushing the northern hemisphere and temperatures of 20 degrees lower than those of today, many of the great giants of the ice age still walked the earth. It was only when the world had warmed up again that mammoths, woolly rhinos, sabre-toothed cats and giant ground sloths finally became extinct. Professor Alice Roberts sets off on her last voyage back to the

Special effects-filled documentary beginning 49 million years ago. The world is heavily forested and birds rule the planet, preying on small mammals. Whales have not yet evolved and their ancestors walk on the land.

A pregnant basilosaurus, an 18-metre, carnivorous whale which lives in the Tethys Sea, is forced to kill the young of a smaller whale to ensure the survival of her unborn calf.

Going back 25 million years to the time of the indricothere, which was the largest mammal ever to live on dry land, being seven metres high and weighing 15 tons! The only threat to an adult would have been the hyaenadon which was the size of a rhino and had jaws that could crush a rock.

The beginnings of mankind can be traced back 3.2 million years to Ethiopia and the advent of Australopithecus, a type of ape which, like humans, was bipedal. These early members of the human family faced many dangers, including the sabre-toothed cat, malaria, and the 14-tonne delnotherium.

Revealing the exotic, oversized creatures that inhabited South America one million years ago, such as the deadly smilodon, the largest of all sabre tooth cats.

Looking at the depths of the Ice Age, following a group of mammoths who have been forced to travel south with the advent of winter. On a dangerous journey across the Alps, many become trapped in bogs or fall victim to predators. However, their most formidable enemies are waiting for them on their return journey - Neanderthals.

For thousands of years, downtown LA hid an indiscriminate killer. In one of the most surprising wildlife crime stories in the world, `Natural World' turns forensic detective to solve the mystery and unmask victims and killers.

According to new evidence, the Woolly Mammoth went on roaming until about the time the Pyramids were built.

The discovery of a 5,000-year-old male mummy in the Austrian Alps has enabled scientists to re-create a vanished world.

David Attenborough tells the story of the discovery and reconstruction in Argentina of the world's largest known dinosaur, a brand new species of titanosaur. Measuring 37m long - close to four London buses put end to end - and weighing 70 metric tons, it now holds the record as the biggest animal ever to walk the earth.

The earth split in India 66 million years ago in a disaster that may have caused the end of the dinosaurs.

Chris Packham is out to determine whether the Himalayan Yeti and the Sumatran Orang Pendek exist.

Dr Iain Stewart looks at how earthquakes and faults have shaped human history by bringing both life and death.

Dr Iain Stewart looks at how rocks have influenced the architecture of the Mediterranean, from the pyramids of Egypt to the squares of ancient Greece.

Tracing the history of cave paintings.

Dr Iain Stewart examines how the rocks beneath our feet played a crucial role in determining the beliefs of ancient civilisations.

Dr Iain Stewart looks at how ancient civilisations learned to exploit the water around them, from the flooding of our Stone Age ancestors' hunting grounds to the fall of the Roman Empire.

Dr Iain Stewart looks at how salt has played a crucial role in the history of the Mediterranean, from the ice ages to the preservation of food and dead bodies in ancient Egypt.

Veteran archaeologist Ned Kelly and a team of scientists investigate the find of a mummified body in the boglands of Cashel, Ireland.

David Attenborough learns that descendants of the dinosaur age are alive and well. David explores how they survived the catastrophes that wiped out other species.

Special effects-filled documentary beginning 49 million years ago. The world is heavily forested and birds rule the planet, preying on small mammals. Whales have not yet evolved and their ancestors walk on the land.

A pregnant basilosaurus, an 18-metre, carnivorous whale which lives in the Tethys Sea, is forced to kill the young of a smaller whale to ensure the survival of her unborn calf.

Going back 25 million years to the time of the indricothere, which was the largest mammal ever to live on dry land, being seven metres high and weighing 15 tons! The only threat to an adult would have been the hyaenadon which was the size of a rhino and had jaws that could crush a rock.

The beginnings of mankind can be traced back 3.2 million years to Ethiopia and the advent of Australopithecus, a type of ape which, like humans, was bipedal. These early members of the human family faced many dangers, including the sabre-toothed cat, malaria, and the 14-tonne delnotherium.

Revealing the exotic, oversized creatures that inhabited South America one million years ago, such as the deadly smilodon, the largest of all sabre tooth cats.

Looking at the depths of the Ice Age, following a group of mammoths who have been forced to travel south with the advent of winter. On a dangerous journey across the Alps, many become trapped in bogs or fall victim to predators. However, their most formidable enemies are waiting for them on their return journey - Neanderthals.

A journey to discover the legendary lost city of Piramesse, a magnificent ancient capital built 3,000 years ago by the Egyptian pharaoh Ramesses the Great. When it was finally rediscovered by early archaeologists, it opened up a bizarre puzzle because it was in the wrong place.

In the Lambeyeque valley in northern Peru lies a strange lost world, the forgotten ruins of 250 mysterious pyramids, including some of the biggest on the planet, colossal structures made out of mud bricks.

This is the story of the formidable Hittites and their long-lost capital, Hattusha, which has recently been rediscovered. Buried in this lost city is one of the greatest libraries of the ancient world, and all the secrets of this mysterious civilisation were written in two codes - one a unique form of hieroglyphs with which we can recreate the lost world of the Hittites.

It is only in recent years that experts have unearthed the biggest dinosaurs that ever lived. One monster eclipsed all others, more than seven times as heavy as diplodocus was the immense argentinosaurus.

A new generation of carnivores was about to take killing to the next level. At the end of the Cretaceous period, these new hunter killers had spread throughout the globe.

A look at bizarre dinosaurs such as the curious buck-toothed Exipdexipteryx, the amazing four-winged Microraptor and the pot-bellied Nothronychus.

In a brutal world where nature is both friend and foe, the ancient powers are just beginning. They must use all their skill and ingenuity to shape their territory and establish their cultures.

In an unpredictable world, the ancient powers must lay down the foundations of their societies to show their strength, protect their people and ultimately build their way to glory.

To pay for armies and other costs, the ancient powers had to tax territories and monetise their assets. But in this world of commerce, ancient societies stored their wealth in different ways.

In a world where enemies watch for weakness, the ancient powers must use all their strength and cunning to defend their people, conquer new lands, and rise to the challenge of the battlefield.

In an unruly world, the ancient powers must lead their people, create ways to govern and keep rebellion at bay. To achieve this, they may invent caste systems, organise gladiatorial games or turn to gods.

Though the ancient powers have endured for centuries, their destruction is close at hand. However, some will leave lasting legacies that will continue to shape the world long after their downfall.