Axel Gomille / Sloth Bear (Melursus ursinus) climbing on tree. Karnataka, India, March.
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Inaki Relanzon / Thousand-year-old Canary Juniper, (Juniperus turbinata canariensis/ Juniperus phoenicea var. turbinata ) against a dusky sky. El Sabinar, El Hierro Island, Canary Islands, February 2011.
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Mark Taylor / English Oak (Quercus robur) standing solitary in a field. Surrey, UK, October. Year sequence, 3 of 4 (autumn).
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Angelo Gandolfi / Ancient Sweet Chestnut trees (Castanea sativa) growing in the Spelunca Gorges. Porto, Parc Naturel Regional de Corse, Corsica island, France, January 2010
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Floris van Breugel / Ancient Bristlecone Pine tree (Pinus aristata) with sunlight shafts beaming through silhouetted gnarled branches, White Mountains, California, USA. July 2007.
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Floris van Breugel / Burnt trees after a station fire near Los Angeles, Southern California, USA, September 2009
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Wild Wonders of Europe / Lilja / Gnarled trunk of an Olive tree (Olea europea) Kolimvaro, Crete, Greece, April 2009
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Jack Dykinga / Utah Juniper (Juniperus osteosperma) ancient tree with gnarled trunk, Grand Staircase-Escalante National Monument, Utah, USA. October.
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Ashley Cooper / Snow Gum trees in the Snowy Mountains, Australia. February 2010. These hardy Eucalyptus trees grow very slowly around 5000 feet in the mountains.
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Angelo Gandolfi / Austrian pine (Pinus nigra calabrica) tree with exposed gnarled roots, Sila National Park, Calabria, Italy. June.
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Angelo Gandolfi / Austrian pine (Pinus nigra calabrica) tree with exposed gnarled roots, Sila National Park, Calabria, Italy. June.
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Angelo Gandolfi / Austrian pine (Pinus nigra calabrica) tree with exposed gnarled roots, Sila National Park, Calabria, Italy. June.