Ingo Arndt / Sockeye Salmon (Oncorhynchus nerka) swimming upstream during spawning run (aerial photo), Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada October.
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Ingo Arndt / Fishery workers counting Sockeye Salmon (Oncorhynchus nerka) aerial photo. Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada October.
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Ingo Arndt / Sockeye Salmon (Oncorhynchus nerka) swimming upstream during spawning run (aerial photo). A few dead animals visible on left side. Adams River, Roderick Haig-Brown Provincial Park, British Columbia, C...
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Ingo Arndt / Sockeye salmon (Oncorhynchus nerka) group swimming upstream during spawning run, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada October.
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Ingo Arndt / Sockeye salmon (Oncorhynchus nerka) group swimming upstream during spawning run, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada October.
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Ingo Arndt / Wildlife Photographer Ingo Arndt taking underwater pictures of sockeye salmon (Oncorhynchus nerka). Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada October.
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Ingo Arndt / Sockeye salmon (Oncorhynchus nerka) dead male after spawning migration. Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada October.
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Ingo Arndt / Wildlife Photographer Ingo Arndt taking underwater pictures of sockeye salmon (Oncorhynchus nerka). Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada October.
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Ingo Arndt / Sockeye salmon (Oncorhynchus nerka) dead male after spawning migration. Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada October.
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Eric Baccega / Two male Grizzly bears (Ursus arctos horribilis) in a river, one trying to steal the salmon catch from the other, Brooks River, Katmai National Park, Alaska, USA, July.
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Eric Baccega / Three male grizzly bears (Ursus arctos horribilis) fishing for Sockeye salmon ((Oncorhynchus nerka) leaping up a waterfall in Brooks River, Katmai National Park, Alaska, USA, July.
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Eric Baccega / Male Grizzly bear (Ursus arctos horribilis) fishing for Sockeye salmon (Oncorhynchus nerka) leaping up a waterfall in Brooks River, Katmai National Park, Alaska, USA, July.