Danny Green / Japanese crane (Grus japonensis) displaying, wings in heart shape, Hokkaido, Japan, February
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Chris Newbert / Feather Duster Worm (Sabellastarte sp) in the shape of a heart, 40 feet deep, Solomon Islands
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Stefan Christmann / Emperor penguin (Aptenodytes forsteri), two adults brooding begging chicks aged five weeks. Atka Bay, Antarctica. September.
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Frederique Olivier / Panning shot from an Emperor penguin (Aptenodytes forsteri) to a chick looking around and calling, Adelie Land, Antarctica, January.
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Frederique Olivier / Emperor penguin (Aptenodytes forsteri) chick calling, with a heart shaped patch on its chest, Adelie Land, Antarctica, January.
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Frederique Olivier / Emperor penguin (Aptenodytes forsteri) chick with a heart shaped patch on its chest approaching an adult, calling, Adelie Land, Antarctica, January.
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Frederique Olivier / Emperor penguin (Aptenodytes forsteri) chick walking, with a heart shaped patch on its chest, Adelie Land, Antarctica, January.
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Ingo Arndt / Aerial view of Hardy Reef, Great Barrier Reef, Queensland, Australia, December 2010.
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Franco Banfi / Love locks on a bridge in Irkutsk, Lake Baikal, Siberia, Russia.
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Ross Hoddinott / RF - Harts tongue fern (Phyllitis scolopendrium) leaf unfurling and creating the shape of a heart, Cornwall, UK, May.
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SCOTLAND: The Big Picture / Whooper swan (Cygnus cygnus) pair on loch in heart shape, Cairngorms National Park, Scotland, UK, November.
