Cyril Ruoso / Margit cleaning down from Common eider (Somateria mollissima) with traditional harp tool whilst some dries in the sun, Lanan Island, Vega Archipelago, Norway June
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Cyril Ruoso / Hildegunn Nordum using traditional harp tool to clean down collected from nests of Common eider (Somateria mollissima) Lanan Island, Vega Archipelago, Norway June
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Pal Hermansen / White wagtail (Motacilla alba alba) nesting in cupboard in house, Lofoten, Norway, June.
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Dave Watts / Mandrill (Papio sphinx) female cleaning fingernails with stick, Captive
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Bryan and Cherry Alexander / Inuit using Ulu (Woman's knife) to clean Polar bear (Ursus maritimus) skin. Siorapaluk, Thule, Northwest Greenland, 1977.
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Suzi Eszterhas / Chimpanzee (Pan troglodytes) learning how to use twigs as tools to extract honey out of holes in termite mound, Ngamba Island Chimpanzee Sanctuary, Uganda
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Suzi Eszterhas / Chimpanzee (Pan troglodytes) learning how to use twigs as tools to extract honey out of holes in termite mound, Ngamba Island Chimpanzee Sanctuary, Uganda
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Bryan and Cherry Alexander / While cleaning fish, Alukie uses an Ulu (an Inuit woman's knife) to remove a fish eye. Pangnirtung, Nunavut, Canada, April 2008.
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Bruce Thomson / Golden-tipped bat (Phoniscus papuensis) flying into a kitchen mop on a verandah where a colony is roosting, Ravenshoe, Queensland, Australia.