The article explores 15 fascinating prehistoric animals that once roamed the earth. These creatures range from large herbivores like the mammoth and diplodocus to terrifying predators like the megalodon and spinosaurus. Each animal is described in detail, including their size, diet, and habitat. The article also highlights some lesser-known prehistoric animals such as the quetzalcoatlus and helicoprion. The diversity of these ancient creatures showcases the incredible variety of life that existed millions of years ago.

Overall, the article presents a captivating look at the world of prehistoric animals and the fascinating evolution of life on Earth.