Have you ever wondered what life was like immediately after the dinosaurs' reign came to a catastrophic end? While many assume the extinction of these massive reptiles would mean a safer planet for us mammals, the reality was quite the opposite. The age that followed was one where mammals, now free from the shadow of the dinosaurs, began to evolve into some of the most unique and terrifying creatures to have ever roamed the Earth. Let's delve into this fascinating period of our planet's history.