00:00Wild dinosaurs ruled the land giant reptiles hunted beneath the waves.
00:05These were the monsters of the deep.
00:08This Lysaurus skull dates back nearly 200 million years to a time when giant marine reptiles dominated the oceans.
00:17The fossil is one of the centrepieces of a new exhibition at London's Natural History Museum called Jurassic Ocean's Monsters
00:27of the Deep.
00:28While the dinosaurs were roaming on the land and pterosaurs were soaring through the skies,
00:33enormous marine reptiles were dominating in the oceans and that's what we bring you to discover in this exhibition.
00:39So these enormous predators would have been lurking in the Jurassic depths
00:44and we have incredible fossil collections here at the museum that help to bring those creatures to life.
00:50Among the stars of the show is this enormous peliosaur, a long-necked marine reptile that could grow up to
00:5912 metres long.
01:02The peliosaur has a long neck and a small head at the front and it has four wing-like flippers
01:08that it would have used in coordination to sort of fly through the ocean.
01:13It was an air breather so it would have to come to the surface a lot.
01:18The exhibition also carries a warning.
01:21The fossil record shows climate change contributed to extinction events millions of years ago.
01:27In the last 200 years we've added over 2,000 gigatons of CO2 to the atmosphere
01:33and that's going to have an impact on how much energy the Earth retains
01:36and that is slowly warming the average temperature of the Earth and the oceans
01:41which puts pressure on those ecosystems.
01:45Researchers say climate change played a major role in prehistoric extinctions
01:50and warned the oceans are once again under pressure.
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