Dinosaurs – The Terrible Lizards
Dinosaurs roamed the planet for about 165 million years, during a time in the Earth's history called the Mesozoic Era. It is difficult to imagine how long this was, until we compare it with ourselves: humans have lived on Earth for less than two million years. During the Mesozoic Era, the Earth's landmasses changed dramatically, new seas were formed, and plants and animals evolved. In the middle of the 19th century, the first fossil skeletons of some extraordinary creatures were unearthed. These skeletons are of the dinosaurs - ...