Evidence for how predators hunted in ancient seas is not easy to come by. Paleontologist Christian Klug, a professor at the University of Zurich’s Paleontological Institute who is also curator of the University of Zurich’s Paleontological Museum, knew that predation frozen in time like this was something to sink your teeth into, even if evidence for who the largest predator was remains indirect. How the belemnite and its prey were fossilized forever in death. Credit: Christian Klug et al. Swiss J Palaeontol “It is remarkable that leftovers are actually interesting sources of palaeobiological knowledge,” Klug, who led a study recently published in