A sauropod is a type of large dinosaur known for its long neck, long tail, and massive body. These gentle giants roamed the Earth during the late Jurassic and Cretaceous periods, feeding mainly on plants. Some well-known examples of sauropods include Brachiosaurus and Diplodocus, which could reach lengths of over 80 feet! Sauropods were herbivores, meaning they primarily ate leaves and other vegetation. Their long necks allowed them to reach high into trees or sweep across the ground to find food. Despite their enormous size, they were generally peaceful creatures, often living in herds for protection against predators like Tyrannosaurus rex.