Erlend Haarberg / Arctic fox (Alopex lagopus) adult barking on rocks, Dovrefjell-Sunndalsfjella National Park, Norway, July.
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Rolf Nussbaumer / Yellow wood sorrel {Oxalis dillenii} growing in bark of Mesquite tree, Texas, USA.
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Alex Mustard / RF - Tomato anemonefish (Amphiprion frenatus) barks a warning from her fluorescent anemone home. Philippines
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Erlend Haarberg / Arctic fox (Alopex lagopus) female barking. Dovrefjell-Sunndalsfjella National Park, Norway, April.
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Erlend Haarberg / Arctic fox (Alopex lagopus) female barking. Dovrefjell-Sunndalsfjella National Park, Norway, April.
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Erlend Haarberg / Arctic fox (Alopex lagopus) female barking. Dovrefjell-Sunndalsfjella National Park, Norway, April.
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Mark Taylor / Lagotto Romagnolo dog sitting and barking.
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Alex Mustard / Saddleback anemonefish (Amphiprion polymnus) female barks as she guards her clutch of eggs, laid beneath her host anemone. Anilao, Batangas, Luzon, Philippines. Verde Island Passages, Tropical West Pa...
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Jeff Vanuga / Red fox (Vulpes vulpes) barking for mate in snow during breeding season. Wyoming, USA, February.
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Erlend Haarberg / Arctic fox (Alopex lagopus) adult barking, Dovrefjell-Sunndalsfjella National Park, Norway, July.
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Tui De Roy / Southern elephant seal (Mirounga leonina) female calling, on ice floe, Antarctica, November.
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Tui De Roy / Ross seal (Ommatophoca rossii) on ice floe, Antarctica, November.
