Mark MacEwen / Japanese macaque (Macaca fuscata) sleeping at hot spring in Jigokudani, Yaenkoen, Nagano, Japan, February.
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Andy Rouse / Pair of Great crested grebes (Podiceps cristatus) courting, with inexperienced female and a disinterested male, Cardiff, Wales, UK, March.
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George Sanker / American Red fox (Vulpes vulpes fulva) baby leaping on its disinterested mother. Grand Teton National Park, Wyoming, USA, May.
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Andy Rouse / RF- African lion (Panthera leo) females greeting, Kenya. (This image may be licensed either as rights managed or royalty free.)
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Bruce Thomson / Rainbow lorikeet (Trichoglossus haematodus) male eye pinning, leaning, flapping wings and jumping in courtship display to female, who climbs branch and leaves frame, Australia. Eye pinning, also known...
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Jack Dykinga / Burrowing owl (Athene cunicularia) female trying to feed kangaroo rat to disinterested chicks. Sonoran Desert, Arizona, USA . May.
