BBC Dinos 24/7

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.

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.

Dinosaurs died out 65 million years ago, and we have hardly ever found a complete skeleton. So how do we turn a pile of broken bones into a dinosaur exhibit? Dr Alice Roberts finds out how the experts put skeletons back together, with muscles, accurate postures, and even - in some cases - the correct skin colour.

Professor Challenger leads a party of explorers from the smog of Edwardian London to South America in search of a mythical plateau rumoured to be inhabited by dinosaurs.

Exploring the idea of human coexistence with dinosaurs. Had the species not disappeared from the face of earth ages ago, keeping them as pets could have been a possibility.

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.

Dinosaurs died out 65 million years ago, and we have hardly ever found a complete skeleton. So how do we turn a pile of broken bones into a dinosaur exhibit? Dr Alice Roberts finds out how the experts put skeletons back together, with muscles, accurate postures, and even - in some cases - the correct skin colour.

Exploring Mongolia's Gobi Desert to determine whether dinosaurs exist in the present as birds. It is one of the harshest places on Earth with the biggest dinosaur graveyard.

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

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

Bird expert Bill Oddie helps construct amazing, life-sized, biomechanical replicas as he presents an imaginary battle between a tyrannosaurus rex and a triceratops.

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

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.

Part 1/3. As life starts evolving in the oceans, our bizarre earliest ancestors battle against 3m long sea scorpions and giant carnivorous fish. Their ability to survive will determine the shape of life on Earth and whether humans will exist at all. As our amphibian ancestors struggle onto land the monsters they face are even more deadly.

Part 2/3. Millions of years before the dinosaurs, a world full of giant sabretooth reptiles and huge armoured herbivores was obliterated when global temperatures soared and vast deserts blanketed the land. As the environment recovered, populations of one species of tough reptile exploded until it alone dominated the planet, but its reign was short-lived.

Part 3/3. The struggle for survival moves onto land in the shape of early reptiles such as Petrolacosaurus. In the Carboniferous swamps, insects and arthropods have taken over and grown into giants, from the giant spider Mesothelae to millipede-like monsters. As the swamps dry up, the world becomes dominated by the first ever giant reptiles - the huge, sail-backed Edaphosaurus.

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 hyaenodon 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.

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.

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.