Suzi Eszterhas / Brown throated Three-toed Sloth (Bradypus variegatus) Judy Avey-Arroyo, Sanctuary Owner, administering rehydration fluids to 2 month orphan baby, Aviarios Sloth Sanctuary, Costa Rica. Model released
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Tony Wu / Sperm whale (Physeter macrocephalus), ten swimming together in gathering of more than 50 individuals. Whales with flatulence and defecating. Sri Lanka.
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David Perpinan / Adult Common rock sparrow (Petronia petronia) feeding chicks, Cuenca, Castile-La Mancha, Spain, June.
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David Perpinan / Rock sparrow (Petronia petronia) feeding chick outside nest, Spain, June.
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Remi Masson / European beaver (Castor fiber) swimming underwater and urinating, River Rhone, Rhone-Alpes, France, June.
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Tony Wu / Sperm whales (Physeter macrocephalus) large group gathering together, rubbing together to shed skin, interacting and defecating. Indian Ocean, March.
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Steven David Miller / Little red flying fox (Pteropus scapulatus) female and baby, hanging with feet down to defecate. Nitmiluk National Park, Northern Territory, Australia.
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Eric Baccega / Malachite kingfisher (Alcedo cristata) defecating on stone. Baringo lake, Kenya, February.
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Stefan Christmann / Emperor penguin (Aptenodytes forsteri) chick defecating whilst brooding on adult's feet. Atka Bay, Antarctica. August.
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Stefan Christmann / Emperor penguin (Aptenodytes forsteri) pair in courtship, one defecating. Atka Bay, Antarctica. May.
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Stephane Granzotto / Pygmy owl (Glaucidium passerinum) looking around, takes off from perch in a tree, Rhone-Alpes, France, September.
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Staffan Widstrand / Wild Wonders of China / Close up shot of a Tailed redbreast (Papilio bootes) defecating, Dehong Prefecture, Yunnan Province, China, May.
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Olga Kamenskaya / Walrus (Odobenus rosmarus) male defecating in water at edge of colony, Vaygach Island, Arctic, Russia, July