Linda Pitkin / 2020VISION / Brown trout (Salmo trutta), Ennerdale Valley, Lake District NP, Cumbria, England, UK, November 2011. Did you know? Trout scales have growth rings which you can read in the same way tree rings.
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Linda Pitkin / 2020VISION / Brown Trout (Salmo trutta) in disused quarry, Jackdaw Quarry, Capernwray, Carnforth, Lancashire, UK, August. Did you know? Brown trout scales have growth rings like tree trunks.
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Adrian Davies / Polished section through Olive tree trunk (Olea europaea), showing growth rings.
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Colin Varndell / Mature Beech trees (Fagus sylvatica) in spring, on beech avenue near Badbury Rings, Dorset, UK. May 2008
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Pete Cairns / Growth rings in trunk of Spruce tree {Picea sp} Norway
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Mark Hamblin / 2020VISION / End section of spruce trunk showing annual growth rings in BSW sawmill, Inverness-shire, Scotland, UK, February 2012. Did you know? The space between tree rings is larger on the side of the tree neare...
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Mark Hamblin / 2020VISION / End section of spruce trunk showing annual growth rings in BSW sawmill, Inverness-shire, Scotland, UK, February 2012.
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Ernie Janes / Growth rings and branches in cross section of Norway spruce (Picea abies) Norfolk, UK
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Tim Laman / A close up of a cut trunk of a pine tree in Japan, showing annual growth rings.
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Nick Upton / Petrified tree stump with clear annual growth rings, from Miocene era c. 20 mya. Lesbos Petrified Forest European and Global Geopark. Eressos, Isle of Lesvos, Greece August 2009
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Philippe Clement / Cross section of tree trunk showing annual growth rings, Belgium
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Wild Wonders of Europe / Widstrand / Cross-section of a Scots pine tree (Pinus sylvestris) trunk showing growth rings, Kuhmo, Finland, July 2008
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Nick Turner / A cut log showing growth rings, Gloucestershire, England, UK.
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Nick Turner / A cut log showing growth rings, Gloucestershire, England.
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Niall Benvie / Detail of annular tree rings in a hand-made wooden box, Scotland.
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Pete Cairns / Wood grain patterns in cut wood showing growth rings and hardwood, Yellowstone National Park, Wyoming, USA
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Kim Taylor / Growth rings of a Douglas fir tree {Pseudotsuga menziesii}, UK.
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Kim Taylor / Scale of Sea bass {Dicentrarchus labrax} showing growth rings.
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Phil Savoie / Cross section of tree trunks showing growth rings
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Phil Savoie / Cross section of tree trunks showing growth rings
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Adrian Davies / Photomicrograph (mag x 50) of growth rings on tree.
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Nick Turner / Cut timber showing growth rings. Gloucestershire, UK
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Mike Read / Cut end of a pine tree on timber stack, Frame Heath Inclosure, New Forest National Park, Hampshire, UK, October 2010
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Martin Camm / Carwardine / Illustration of cetacean tooth to show growth rings. Growth rings on right, original tooth with root on left (Wildlife Art Company).