Anup Shah / Lion-tailed macaques (Macaca silenus) play fighting. Anamalai Tiger Reserve, Western Ghats, Tamil Nadu, India.
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Denis-Huot / Lion (Panthera leo) male and female watching male buffalos (Syncerus caffer) Masai-Mara Game Reserve, Kenya
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Nick Upton / Little egret (Egretta garzetta) threatening a Coot (Fulica atra), Gloucestershire, UK, May.
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Chien Lee / Giant Forest Ant (Camponotus gigas) pair from different colonies confront each other in a territorial display, Lambir Hills National Park, Malaysia
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Chien Lee / Giant Forest Ant (Camponotus gigas) pair from different colonies confront each other in a territorial display, Lambir Hills National Park, Malaysia
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Chien Lee / Giant Forest Ant (Camponotus gigas) pair from different colonies confront each other in a territorial display, Lambir Hills National Park, Malaysia
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Mark Moffett / Stalk-eyed Fly (Cyrtodiopsis whitei) males confront each other, South Africa
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Paul D Stewart / European Brown Bear (Ursos arctos arctos) kills hunter who has taken her cubs. 1731 Physica Sacra (Sacred Physics) by Johann Scheuchzer (1672-1733) bear attack, folio copper engraving drawn by a team...
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Tony Wu / Female Siberian flying squirrel (Pteromys volans orii) copulating with another male. Primary male rushing to confront interloper. Hokkaido, Japan. March.
