The X Creatures
Investigating the big cat sightings in the UK such as the beasts of Exmoor and Bodmin.
Investigating the big cat sightings in the UK such as the beasts of Exmoor and Bodmin.
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Meet the liopleurodon, the biggest of all the carnivores 149 million years ago.
This is the story of one of the largest animals to walk the Earth - the mighty sauropods.
Two hundred and twenty million years ago, one group of reptiles was about to take over the world.
By 280 million years ago, a new group of animals and plants took over - the reptiles.
Next it was the turn of the fish to grow larger and take over the role of top predator.
550 million years ago, our ancient ancestors evolved teeth and all manner of new weapons.
When the Maori first discovered New Zealand, they encountered some deadly predators.
Australia 65,000 year ago: the first human explorers encounter massive deadly lizards.
14,000 years ago, humans reached America and find the world's most fierce predators there.
A team of experts reconstruct Lucy from the species Australopithecus afarensis.
Tucume, South America's largest pyramid city, has 26 structures and a history of sacrifice and neglect.
Piramesses, the grand capital of Ramesses II, was lost to time until scientists found it in the desert.
Could the Thylacine or Tasmanian Tiger be surviving decades after it's reported extinction?
Investigating the big cat sightings in the UK such as the beasts of Exmoor and Bodmin.
Investigating the legend of the North American Bigfoot.
Is there really a Loch Ness Monster and could there be other pre-historic survivors?
Investigating the Giant Squid - the last great creature mystery of the sea.
Investigating the Yeti - the world's most famous mystery animal.
What finally killed all the woolly rhinos, mammoths, sloths and sabre-toothed cats?
Professor Alice Roberts ventures to the areas hit hardest by the cold of the Ice Age.
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