Zoltan Nagy / Dog's tooth violet (Erythronium dens-canis) near Targu Mures, Romania. March
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Zoltan Nagy / Dog's tooth violet (Erythronium dens-canis) near Targu Mures, Romania. March
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Zoltan Nagy / Dog's tooth violet (Erythronium dens-canis) in flower, forests near Targu Mures, Romania. March
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Zoltan Nagy / Dog's tooth violet (Erythronium dens-canis) in snow during a cold spell in spring, near Targu Mures, Romania. March
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Denis-Huot / African wild dogs (Lycaon pictus) cub at den, Khwai river Game Reserve, Botswana
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Denis-Huot / African wild dogs (Lycaon pictus) cub at den, Khwai river Game Reserve, Botswana
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Denis-Huot / Spotted hyena (Crocuta crocuta) cubs at den, Masai-Mara Game Reserve, Kenya
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Denis-Huot / Spotted hyena (Crocuta crocuta) cubs at den, Masai-Mara Game Reserve, Kenya
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Laurent Geslin / European brown bear {Ursos arctos} emerging from den in snow, captive, Switzerland, February
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Igor Shpilenok / Wolverine (Gulo gulo) feet in snow den hole, where it hibernates over winter. Kronotsky Zapovednik Nature Reserve, Kamchatka Peninsula, Russian Far East, January.
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Igor Shpilenok / Wolverine (Gulo gulo) emerging from snow shelter after hibernation. Kronotsky Zapovednik Nature Reserve, Kamchatka Peninsula, Russian Far East, February.
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Anup Shah / Spotted hyena (Crocuta crocuta) clan at the den. Masai Mara National Reserve, Kenya, July
