How do we know what Earth looked like long before humans appeared? Fossils provide many clues. Palaeontological discoveries help scientists reconstruct past environments, trace the evolution of life and learn about creatures that vanished millions of years ago. From dinosaurs to tiny marine organisms, these remnants of the past preserve snapshots of ancient worlds that no longer exist.
Ammonite fossils from the Jurassic Period
Today in History
More Desktop Wallpapers:
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Bora Bora in French Polynesia
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St. Finians Bay, County Kerry, Ireland
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Snowy owl near the Canadian Rockies
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White trilliums in Ontario, Canada
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Eastbourne Pier, England
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Strokkur geyser in Iceland
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Alam-Pedja Nature Reserve, Estonia
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Yurts in Mongolia
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A group of Southern gemsbok in the savannah, Botswana, USA
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Daffodils
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Dawn light through frosty trees, Sweden
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Big Bend National Park, Texas, USA
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Daiichi Tadami River Bridge, Fukushima, Japan
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Belogradchik Rocks, Bulgaria
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The city of Osaka at night, Japan
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Spinner dolphin pod
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Hozugawa River in Arashiyama, Kyoto, Japan
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African buffalo, Ngorongoro Crater, Tanzania
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Poinsettias
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Château de Sully-sur-Loire, Centre-Val de Loire, France
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Birch trees, Drammen, Norway
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Crystal Lake in the Enchantments, Washington, United States
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Golling Waterfall, Salzburg, Austria
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Greater flamingos, Camargue Regional Nature Park, France
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Reine, Norway
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Amazon rainforest, Ecuador
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Giant anteater
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Mallard duck
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Lavender rows, Plateau de Valensole, Provence, France
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Marine iguanas, Galápagos Islands, Ecuador
Bing Wallpaper Gallery

