Juergen Freund / Fern Pool - a permanent swimming hole surrounded by lush vegetation, Karajini National Park, Western Australia
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Juergen Freund / X-ray of shell of the Venus Comb Murex {Murex pecten}
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Juergen Freund / X-ray of shell of spider conch {Lambis chiragra}
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Juergen Freund / X-ray of the shell of the Pearly / Chambered nautilus {Nautilus pompilius} showing the internal chambers of the shell.
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Juergen Freund / Split-level photograph of coral reef shallows, Rowley Shoals, Western Australia
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Jose B. Ruiz / Ro Tinto, or Red River, very acidic and coloured deep red by iron dissolved in the water that drains from the local Riotinto mines causing severe environmental problems. Huelva, Spain .
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Doug Perrine / Copper sharks / bronze whaler {Carchahinus brachyurus} and South African fur seal {Arctocephalus pusillus pusillus} preying on sardine baitball {Sardinops sagax} South Africa.
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Juergen Freund / Whale shark and person swimming in silhouette {Rhinicodon typus} Indo Pacific
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Staffan Widstrand / Deserted beach, Gotska Sandn National Park, Sweden, July 2007