Niall Benvie / The Birnam Oak, an ancient English oak tree (Quercus robur) nearly 1000 years old, Perthshire, Scotland, UK, July.
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Andres M. Dominguez / Portuguese oak tree (Quercus faginea) covered in moss, Los Alcornocales Natural Park, southern Spain, November.
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Andres M. Dominguez / Holm oak tree (Quercus ilex) in snowfall, Sierra de Grazalema Natural Park, southern Spain, January.
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Solvin Zankl / Great capricorn beetle (Cerambyx cerdo) on Oak tree (Quercus sp) Niedersachsische Elbtalaue Biosphere Reserve, Lower Saxonian Elbe Valley, Germany, July.
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Solvin Zankl / English oak tree (Quercus robur) in moonlight, Nauroth, Germany, February.
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Solvin Zankl / Gall wasp (Cynips quercusfolii) emerging from the oak gall. Germany, October.
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Solvin Zankl / English oak tree (Quercus robur) silhouetted against orange sky with star trails, Nauroth, Germany, October.
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Solvin Zankl / Springtail (Dicyrtomina ornata) on oak tree leaf. Niedersechsische Elbtalaue Biosphere Reserve, Elbe Valley, Lower Saxony, Germany, December.
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Solvin Zankl / 'Femeiche' the Court Tree at night, an ancient English oak (Quercus robur) used in the Middle ages as Vehmic or secret court in which serious criminals were judged and executed. Erle, Germany, Octobe...
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Solvin Zankl / Stag beetle (Lucanus cervus) silhouetted against oak tree leaf. Elbe, Germany, June.
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Solvin Zankl / Stag beetle (Lucanus cervus) male on oak tree. Elbe, Germany, June.
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Solvin Zankl / The Scarce Merveille du Jour (Moma alpium) caterpillar with urticating hairs on English oak tree (Quercus robur) leaf, Stettin Lagoon, Bay of Szczecin, Germany, August.
