During the Paleocene-Eocene Thermal Maximum (PETM), a period of geological rapid warming and aridification approximately 56 million years ago, a flesh-eating mesonychid mammal called Dissacus praenuntius responded in a surprising way — it started eating more bones. Dissacus praenuntius. Image credit: DiBgd / CC BY 4.0. “What happened during the PETM very much mirrors what’s happening today and what will happen in the future,” said Andrew...
