Way back in the mists of time (last year) we did a whole podcast on Triceratops, one of the most famous dinosaurs of all. But is Triceratops not all it seems and is it in fact just part of a growth series which results in the largest and oldest animals becoming another dinosaur entirely in Torosaurus? The answer is no, but the reasons why this was proposed and why it’s not the case are interesting in themselves and so we give over this episode to the ideas of changing dinosaurs and what we know about this. Then we get joined by Jay Foreman who asks… well lots but I don’t know what questions Iszi edited in when I wrote this.    Links: An old blogpost that covers some of the issues Dave and Iszi discuss well: https://www.earthmagazine.org/article/age-changes-you-torosaurus-actually-just-old-triceratops/ An article on ‘Tiny’ the Torosaurus: https://www.anythinklibraries.org/spark/tiny-torosaurus  A link to Andy Farke’s paper on Nedoceratops with some great photos of this weird specimen: https://pdfs.semanticscholar.org/cf50/7b4ce1751fdf11399bd7971f60da5857fda3.pdf https://www.jayforeman.co.uk/ www.patreon.com/terriblelizards @iszi_lawrence @dave_hone