I have just finished Steve Brussatte's excellent 'The rise abs reign of the mammals' which is one the best best books about nature I have read. It concerns the evolution of mammals from the origins in the Carboniferous period and into how mammals evolved included unique families such as bats. I find the book mind-blowing because the origins start with rodent like animals which are neither reptile or mammals. I did Classification as part of my A level biology but shocking to know how much of this was wrong because analysis of DNA has changed the game insofar what animals are related to each other . It also pushes back beyond fossils with primates emerging in the Cretaceous period. It also explains why particular animals live in one continent. There's so much information in this book which is sometimes technical but was impossible for me to.put down. I really recommend this book. There are a few here who will love this book. It is essentially about evolution but also deals with changes to geography and climate yet will probably change how you think when you next visit Marwell! Probably the most thought provoking book I have ready about nature.