BBC Dinos 24/7

Part 3/4. David Attenborough uncovers dinosaur bones in the Sahara desert and visits the biggest, most spectacular dinosaur displays in the world.

Part 4/4. David Attenborough uncovers bizarre creatures of the earliest seas, tiny horses the size of spaniels and an animal that's half bird and half reptile - the rarest of them all.

Part 1/3. As life starts evolving in the oceans, our bizarre earliest ancestors battle against 3m long sea scorpions and giant carniverous 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.

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.

This episode explains how the 120-million-year reign of the dinosaurs ended when mammals became the fastest and fiercest creatures on the planet.

A look at the science that has proved Darwin's idea that intelligent, sophisticated humans have an ancestral connection with the ape.

Steve is going large, as he focuses on the biggest animals to have ever walked the earth. In his dino-den, he starts by meeting the Argentinosaurus, an animal so large that even its poo was deadly. But if you thought that that was the biggest dinosaur ever, then think again.

The Jurassic was home to the most vicious and violent predators the world has ever seen. To survive, herbivores had to fight back! Steve Backshall goes on a mission to track down the deadliest of all dinosaur defenders. He'll meet the armoured tank that is Nodosaurus, he'll test whether an Iguanodon really has what it takes to beat a T-rex, and thanks to some mega-engineering he'll unleash an Anky

Steve tries to chomp through a car like a T-rex, wield an axe like an Allosaurus and hitch a ride in Britain's biggest tank to showcase the might of a Spinosaurus.

Steve gets freaky on a mission to find the weirdest dinosaur ever. He kick-starts with a Gigantoraptor, an 8-metre tall giant that laid the biggest eggs in history.

Steve discovers just what it takes to be a terror from the skies. He straps himself into one of Britain's fastest wind tunnels where he goes head to head against Microraptor.

Steve travels to new depths as he discovers just what it takes to be an aquatic terror. His quest sees him rocket through water in spectacular style, just like an Opthalmosaurus.

Steve's on a mission to find dinosaurs that have something a little special: fearsome killers, with incredible abilities! Get ready for a sensory sensation! His quest sees him race in the dark like a Troodon, track prey from miles away taking tips from the Daspletosaurus, and finally he gets his hands on a real life Caiman to show how their pressure pits are just like that of the Spinosaurus. Stra

Steve goes on an undercover mission to unearth the sneakiest dinosaurs that were far deadlier than they first appeared.

Steve Backshall is on the hunt for the most deadly animals to have ever walked the earth: dinosaurs. Steve goes on a mission to uncover what was deadlier than the dinosaurs, from massive monsoons and super-sized sandstorms to ballistic bacteria and gory gas. In an epic finale, Steve ends with a bang as he recreates the dinosaur-killing asteroid impact in an experiment.

Steve Backshall looks back at the most awesome experiments over the series and chooses his highlights.

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

Are sparrows and blackbirds the direct descendents of a vicious group of dinosaurs including the velociraptor?

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

How do modern archaeologists extract info from a dig? A dig at an Iron Age hill-fort at Danebury is the focus.

Horizon follows scientists across the world on a quest to solve the riddle of the Hobbit.

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

Richard looks at the winners and losers of the great Bronze Age collapse, and the new powers that emerged in the harder-edged Age of Iron.

Richard Miles explores the power and the paradox of the `Greek Thing' - a blossoming in art, philosophy and science that went hand-in-hand with political discord, social injustice and endless war. He paints a fascinating picture of the internal and external pressures that fuelled this unique political and social experiment, one that would pioneer many of the political systems that we still live wi

Richard Miles traces the battle-scarred career of Alexander the Great, from Greece through Turkey, Syria and Lebanon to Egypt and ultimately Pakistan, where he discovers fascinating traces of a city in which Greek west and Buddhist east were united in an intriguing new way. However it would be Alexander's successors, the Hellenistic Kings, who had to make sense of the legacy of this charismatic ad

Archaeologist and historian Richard Miles examines the phenomenon of the Roman Republic, from its fratricidal mythical beginnings, with the legend of Romulus and Remus, to the all too real violence of its end, dragged to destruction by war lords like Pompey the Great and Julius Caesar.

Richard Miles examines the rise and fall of the Roman Empire. The material benefits of the `good order' delivered by Roman rule provided its citizens and subjects with the security to ask profound questions about the meaning of life, questions that the Roman belief system was ill-equipped to answer. Christianity grew to fill the spiritual vacuum, and the City of Man was eclipsed the City of God.

Archaeologist Richard Miles presents a series charting the history of the breakthroughs and watersheds in our long quest to understand our ancient past. He begins by going back 2,000 years to explore how archaeology began by trying to prove a biblical truth - a quest that soon got archaeologists into dangerous water.