Deep in the sub-basement of the Natural History Museum in London, surrounded by a vast collection of dinosaur bones, world-leading palaeontologist Prof Paul Barrett gives an insight into how prehistoric times can inform current issues like climate change. 

In this golden age for prehistoric reptiles, where on average one new dinosaur is discovered every week, innovative digital tests and detailed online archives mean we can find out more about their life on Earth, our planet & evolution. 

Paul has an armoured dinosaur named after him - Vectipelta Barretti - and describes finding a new fossil, and being the first human to see it, as a moment of pure discovery.