These 10 frozen prehistoric creatures from around are stunningly preserved and provide tantalizing clues about their lives — from what they ate to how they died., For thousands to millions of years, these massive creatures stalked Earth at its dawn, until climate change — or early man — hastened their demise. Prehistoric animals once roamed — and ruled — planet Earth. Some of them, like the giant sloth or the woolly rhino, were generally gentle., You might know of the T. Rex and the Triceratops, but have you heard of the duck-billed Edmontosaurus or the peacock-like Nomingia? From raptors to tyrannosaurs and sauropods to ornithopods, this list includes more than 700 dinosaurs that lived during the Triassic, Jurassic, and Cretaceous periods., For most of human history our ancestors shared the earth with giant prehistoric animals. Although the dinosaurs were long gone by the time our earliest ancestor, Homo habilis, walked the earth 2.3 million years ago, there were still plenty of behemoths around., Fearsome animals existed at the time of the dinosaurs that you, hardly, know about. Fortunately, they have gone extinct millions of years ago! Below is a list of the 23 most deadliest prehistoric animals., In this article, we have made a list of prehistoric animals with pictures to help you get knowledge about them, starting from the scary prehistoric animals to the most significant prehistoric animals..