In front of a live audience at the Cambridge Science Centre, Chris Smith is joined by three paleontologists to discuss fascinating fossils! Alex Liu explains where the first animals evolved from, Stephanie Pierce describes how animals first crawled out of the oceans and Jon Tennant digs into how the dinosaurs died out. The team also answer questions like how big are fossilied spiders? Plus, Dave Ansell and Kate Lamble break down bones and discover how we know how fast dinosaurs ran...