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hyena skull on white, isolated
China,The Tibet autonomous region,Nyingchi ( a county in the Xizang Autonomous Region ),
...an old Spanish coin, a means of payment from the Iberian Peninsula made of metal
Mineral deposition of hot spring terrace at Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA
A garden banden snail (Cepaea hortesis) in close-up on a stone in the morning sunlight.
Computer generated 3D illustration with the dinosaur Suchomimus in a landscape
Wild Pig Skull in Pantanal Wetlands, Brazil
Petroglyph or rock art carvings of Native Americans on a canyon wall in Freemont,  National Park Capitol Reef  Utah, USA
Small snake in the hands of scientists after being caught during a biodiversity survey
rough round agate mineral sample with outer shell geode
Bivalvia Fossil inside a limestone rock on moss floor. Gastropods from the jurassic period captured during autumn season.
Seymouria baylorensis - articifial cast of fossil Early Permian period. Seymouria was a carnivorous, about one meter long amphibian, some of whose adaptations resembled reptiles
Ancient Vernal style petroglyph. Fremont Culture, Utah.
Concavenator dinosaur walking in the desert by sunset - 3D render
Close-up painting at La Cieneguilla Petroglyph Site near Santa Fe, NM. The petroglyphs were painted between circa 1400 and 1800 by Keresan-speaking Pueblo Indians.
Native American rock art is prevalent throughout the Four Corners Region of the southwest USA, particularly in the southeastern portion of Utah.  This panel is a herd of possibly antelope or bighorn sheep that can be found near Bluff, Utah and is known as the Sand Island petroglyph site.
Horizontal closeup photo of a section of sandstone rock on the NSW south coast of Australia showing erosion holes, called honeycomb weathering, caused by wind and water. Sand particles can be seen in the weathered holes of the rock
Saltwater crocodile in Hong Kong Wetland Park
Close up of a cermic sink/wash bowl decorated with black color and gold dust
The carcasses of Chum (or Keta) Salmon lie in Piper Creek in Carkeek Park, Seattle, Washington.
Mayan Sacrificial Dagger - Knife Arrowhead
Petrified Forest National Park, a natural attraction place with many petrified tree trunks and fossils, in Arizona, USA.
Frozen Water in a puddle
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Close-up of an Eastern bearded dragon in the wild
Coypu swimming in murky river water
Acid sulphate mudpool at the Sulphur Flats in Rotorua, New Zealand.
American Alligator in Texas
chinese medicine Rhizoma Cibotii, Cibotium barometz
Free Images: "bestof:Estesia.JPG Skull of Estesia mongoliensis a fossil lizard took the foto on the American Museum of Natural History in New York 2008-04 Ghedoghedo GFDL cc-by-sa-3"
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Charm necklace, Masai - African objects in the American Museum of Natural History - DSC05973.JPG
Shield, Masai - African objects in the American Museum of Natural History - DSC05971.JPG
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Lagothrix lagotricha grison mâle MNHN.jpg
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Stroop Report - Warsaw Ghetto Uprising 06.jpg
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'Landscape, Hudson Valley' by George Inness, Cincinnati Art Museum.JPG
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