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Two Allosaurus Dinosaurs Look for Prey on a High Mountain

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Columbian Mammoth

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A Family of Mamenchisaurus Dinosaurs

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Pliosaurus Irgisensis Attacking a Shark

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Mammoth Walking Through a Blizzard on Mountain

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Herd of Corythosaurus Duckbill Dinosaurs Grazing

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Bravoceratops Polyphemus, Late Cretaceous of Texas

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A Large Glyptodon Stands Near the Edge of a Stream

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A Doedicurus Glyptodont Compared to Modern Armadillos

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Two Pennant Fish Scamper Away from a Pod of Striped Dolphins

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Dsungaripterus Weii, a Pterosaur That from the Early Cretaceous Period

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Orang Utang and Gibbon, 1822

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Ernst Haeckel, German Zoologist and Evolutionist, 1899

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Ernst Haeckel (1834-191), German Zoologist and Evolutionist

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Ulysses Aldrovandi, 16th Century Italian Naturalist, 18th Century

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Conrad Gessner, Swiss Naturalist, 1887

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Ernst Haeckel, German Zoologist and Evolutionist, in the Canaries, 1867

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Alexandre Agassiz, Swiss-Born American Oceanographer, Marine Zoologist and Mining Engineer, 1883

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Yangchuanosaurus Spies on a Group of Mamenchisaurus

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Woolly Mammoths and Woolly Rhinos in a Prehistoric Landscape

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Tyrannosaurus Rex Dinosaur Walking to the Edge of Water

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Tyrannosaurus Rex Chasing a Herd of Parasaurolophus Dinosaurs

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Two Orca Whales Pass Near an Iceberg in the North Arctic Ocean

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Phorusrhacos, Smilodons and Macrauchenia in Ancient Argentina 2 Million Years Ago

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Omeisaurus Dinosaurs Being Stalked by a Carnivorous Predator

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Olorotitan Duckbill Dinosaurs Grazing

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Great White Shark Swimming Underwater

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