Get up close to the Rhomaleosaurus - an extinct marine predator that lived 180 million years ago - as it roams the Natural History Museum's Fossil Marine Reptiles gallery.
Broadcaster Bettany Hughes takes you on an extraordinary journey to meet this prehistoric sea dragon.
Discover how it lived, moved and what it looked and sounded like, and find out why studying long-extinct creatures helps scientists better understand species living today.
Interested in Natural history?
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