The study of fossils, organisms that died millions of years ago, sometimes offers incredible surprises with the discovery of organisms struck by death during their daily activities. These findings are extremely precious for the reconstruction of the way of life, they offer us the possibility to observe, in a surprisingly vivid manner, some scenes of daily living, at times cruel, at times gentle and moving. Paleontology, therefore, enables us to reconstruct scenarios of natural environments with their inhabitants, their struggle for life and their habits in a clear and at times surprising manner. Each one of these scenarios then fit into the large complex puzzle of the history of life on the Earth, enabling us, with every new discovery, to understand our planet better.