Nick Garbutt / African elephant (Loxodonta africa) male in threat display to rival. Floor of the Ngorongoro Crater, Ngorongoro Conservation Area, Tanzania.
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Nick Garbutt / Black rhino (Diceros bicornis) female browsing on herbs. Ngorongoro Crater, Conservation Area, Tanzania. March.
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Michel Roggo / Underwater view of Blue Lake, lake in an extinct volcano, Mount Gambier, South Australia, Australia. March 2015. Photographed for The Freshwater Project
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Michel Roggo / Underwater view of Blue Lake, lake in an extinct volcano, Mount Gambier, South Australia, Australia. March 2015. Photographed for The Freshwater Project
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Michel Roggo / Underwater view of Blue Lake, lake in an extinct volcano, Mount Gambier, South Australia, Australia. March 2015. Photographed for The Freshwater Project
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Michel Roggo / Blue Lake, lake in an extinct volcanic maar (a broad volcanic crater) Mount Gambier, South Australia, Australia, March 2015 . Photographed for The Freshwater Project
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Michel Roggo / Blue Lake, lake in an extinct volcanic maar (a broad, low-relief volcanic crater) Mount Gambier, South Australia, Australia, March 2015 . Photographed for The Freshwater Project
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Michel Roggo / Blue Lake, lake in an extinct volcanic maar (a broad volcanic crater) Mount Gambier, South Australia, Australia, March 2015 . Photographed for The Freshwater Project
