BBC Dinos 24/7

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.

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.

In a time when monstrous creatures ruled the earth, South America was the land of the giants. Nigel Marven walks among these gigantic creatures, on a quest to witness the largest predator bringing down the largest prey.

Nigel Marven journeys back to the sand dunes of Mesozoic Mongolia to track the owner of the largest claws of all time, the Therizinosaurus. His adventure yields a series of surprising clues, a nest, footprints, dung, and more.

Scientists study the perfectly preserved remains of an adolescent allosaurus they call Big Al.

This scientific detective story traces the evidence for Big Al the allosaur's existence, using clues from climate change studies, forensics, and fossil records to bring him back to life.

Animatronics, computer animation and science re-create the dinosaurs' world.

Featured species are the coelophysis and the diplodocus.

Featured species are the opthalmosaurus and the ornithocheirus.

Featured species are the leaellynasaura and the tyrannosaurus.

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.

Archaeologist and historian Richard Miles explores the roots of civilisation in the first episode of a series that runs from the creation of the first cities in Mesopotamia some 6,000 years ago, to the decline and fall of the Roman Empire. Starting in Uruk, the `mother of all cities', in southern Iraq, Richard travels to Syria, Egypt, Anatolia and Greece, tracing the birth and development of techn

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.