Juergen Freund / Newly harvested Mangrove timber getting cleaned in the sea. The red bark has been taken off causing an orange red tint in the shallow water. Raja Ampat, West Papua, Indonesia, February 2010
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David Woodfall / Young volunteers help create raised planting beds for growing food, Down to Earth environmental project, Murton, Gower, South Wales, UK 2009
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Juergen Freund / Newly harvested Mangrove timber getting cleaned in the sea. The red bark has been taken off causing an orange red tint in the shallow water. Raja Ampat, West Papua, Indonesia, February 2010.
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Juan Manuel Borrero / Sun-dried bricks lined up in Morocco December 2007
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Juan Manuel Borrero / Sun-dried bricks lined up in Morocco December 2007
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Thomas Marent / Termites carrying building materials back to nest, Sumatra, Indonesia
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Nature Production / Great Egret {Ardea alba} male (left) passing materials for building a nest to female (right), Kanagawa, Japan
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Jean E. Roche / Mud brick production, Timimoun, Algeria