"I started collecting fossils when I was seven, and I’ve been doing it ever since. In fact, it’s now my job – I work at a museum, and my specialty is prehistoric animals, including fossil fi sh and dinosaurs. We’re constantly fi nding new dinosaur bones (and sometimes skin or poo or even feathers) that tell us more about these extraordinary beasts – how they fought each other, how they looked after their babies, how far they travelled, how they changed over time, and much more. These dinosaur fossils are in big demand, and are sometimes smuggled overseas and sold illegally. (I once travelled around the world trying to catch a thief who had stolen some dinosaur footprints. It’s true! ) So let’s go back 150 million years, to the fantastic world of the dinosaurs."