Why do some shells have shimmery rainbow linings? And can you tell a trilobite from an ammonite? Gallery-style pages showcase creatures fossilised in amber, spiny fossils and an amazing array of colourful seashells. Off-the-page activity spreads include tips on fossil hunting and how to make fossil imprints using shells. With colourful illustrations and amazing facts, outdoor activities to try and features on shell patterns, great fossil finds and living fossils, this little book will provide hours of pleasure, both indoors and out.