A groundbreaking discovery shows how the endless battle between predators and prey began 517 million years ago. This finding helps explain why animals today, from house cats to humans, have natural defenses against threats. Scientists found tiny ancient shells in South Australia with holes made by predators. These shells, some no bigger than a grain of sand, tell an amazing survival story that continues in nature today. Think of how your cat’s sharp claws help it catch mice, while mice have become faster and more alert to escape. This same back-and-forth happened with ancient sea creatures. When predators got better … Continue reading 517-Million-Year-Old Fossils Reveal Earliest Predator-Prey Arms Race