Fossils of extinct animals are scarce in the southeastern United States, but archaeologists have uncovered enough evidence to know that a variety of dinosaurs lived in Southern forests and coastal lowlands. Large meat-eaters hunted plant-eating hadrosaurs. Ostrichlike dinosaurs darted after small prey, and armor-covered nodosaurs rambled through underbrush 75 million years ago. Giant reptiles that were not dinosaurs also lived in the South. The...