
Journeys from the Centre of the Earth
Dr Iain Stewart reveals how earthquakes have created a network of cracks in the ground.

Dr Iain Stewart reveals how earthquakes have created a network of cracks in the ground.

Over 150 million years during the Jurassic period, the first giant killers stalked the Earth.

Recent discoveries reveal the extraordinary ability of dinosaurs to adapt and survive.

The southern continents are home to some of the undisputed heavyweights of the dinosaur world.

A herd of mammoths head south for winter, running a gauntlet of ice-age hunters.

The largest of all the sabre tooth cats roamed South America one million years ago.

Three million years ago, Ethiopia was home of the ape-man Australopithecus and the sabre-toothed Dinofelis.

Twenty five million years ago lived the Indricotheres - the largest land mammals of all time.

In the sea, 36 million years ago the most monstrous mammals can be found.

Forty-nine million years ago, the world was heavily forested and birds ruled the planet.

A look at the scientific work which went into the reconstruction of Big Al the Allosaurus.

In 1991, scientists discovered a perfectly preserved Allosaurus body and named him Big Al. This is his story.

Nigel Marven is on the trail of the dinosaur with the biggest claws of all time.

Computer animation is used to simulate dinosaurs in a walk alongside the biggest ones that ever lived.

David Attenborough explores why dinosaurs vanished while reptiles like crocodiles and turtles survived.

Horizon joins a major trek to a remote plateau in Argentina, to unearth the real Jurassic Park.

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

Steve goes on a mission to uncover what was deadlier than the dinosaurs.

Steve is on a mission to unearth that were far deadlier than they first appeared.

Steve's on a mission to find dinosaurs with incredible abilities.