BBC Dinos 24/7

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.

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

Part 1/4. David Attenborough shows us how ancient creatures have come to be preserved as fossils and how those fossils can shed light on characteristics of these creatures' lives, and even their death.

Part 2/4. Could pterodactyls fly? And why did trilobites have such good eyes? David Attenborough investigates the secret lives of animals from the past, as told in the fossil record.

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.

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.

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

Here, Bill Oddie asks whether the Velociraptor was really the monstrous predator of popular legend.

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 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.

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.

Exploring the newfound remains of a dinosaur species considered the biggest carnivore in history, all while questioning whether they engaged in a fight against the Argentinosaurus.

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.

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

Chris Packham embarks on a mission to investigate the existence of the mythical giant squid.

Chris Packham searches for clues related to the existence of the Loch Ness Monster in Scotland. He also visits Australia to learn about a giant lizard called Megalania.

Chris Packham sets out in search of stories about Bigfoot, a mythical ape-like creature that has been the focus of many fiction novels, movies and documentaries over the years.

Chris Packham explores the English countryside to learn about mythical big cats such as the Beast of Bodmin and Beast of Exmoor.

Chris Packham investigates whether the thylacine, aka Tasmanian tiger or Tasmanian wolf, has truly gone extinct. The species lived in Australia and Tasmania.

A dig hopes to excavate the 2000-year-old tomb of Qin Shihuang, China's First Emperor.

The lives of cavemen were nasty, brutish and short, but somehow they evolved over 3.5 million years into Homo sapiens.

Two very different species compete for survival in Africa 2,000,000 years ago.

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

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.