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Introduction to the Mysteries
Investigations and Theories 1419
The Emergence of Humans 2631
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250 million Africa amphibians ancestors animals and plants ankylosaurs apelike appeared armor Australopithecus bats birds Brachiosaurus cave paintings Cenozoic century chimpanzee Coelophysis creatures Darwin Deinonychus descended Dinosaur Age dinosaur bone dinosaur found dinosaur name dinosaur world discovered discoveries of dinosaur display at Crystal early humans Earth eggs evolution expedition to Mongolia footprints fossils Fossils reveal genes genus Gideon Mantell group of animals Hadrosaurs hominids Homo erectus Homo habilis Homo sapiens hot-blooded huge Ice Age Ichthyosaurs Iguanodon insects land animals last dinosaurs legs mammals Mammoths meat-eating million years ago missing link model dinosaurs modern humans Mongolia mya Carboniferous period MYA MESOZOIC mya Triassic period mysteries Naming dinosaurs Neanderthals nest Otzi Oviraptor paleontologists Permian period Piltdown Plant-eating plesiosaurs pterosaurs pterosaurs flew published The Descent recent fossil discoveries remains of Homo reptiles reptiles dominate sauropods seas skeleton skull species studies teeth theories thought tiny Tyrannosaurus rex vertebrates