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Crenulated fiddler crab (Uca crenulata) waving its major claw at another crab, part of a courtship display, Southern California, USA, June.
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John Chan / Crenulated fiddler crab (Uca crenulata) waving its major claw at another crab, part of a courtship display, Southern California, USA, June.
Great frigatebird (Fregata minor) male at nest site, with gular sac inflated to attract females. Genovesa Island, Galapagos, May.
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John Shaw / Great frigatebird (Fregata minor) male at nest site, with gular sac inflated to attract females. Genovesa Island, Galapagos, May.
Galapagos sea lion, (Zalophus wollebaeki), swimming upside down, Galapagos
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Andy Rouse / Galapagos sea lion, (Zalophus wollebaeki), swimming upside down, Galapagos
RF - Black Grouse (Tetrao tetrix) male peforming flutter jump display on lek, Cairngorms National Park, Scotland, UK.May (This image may be licensed either as rights managed or royalty free.)
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SCOTLAND: The Big Picture / RF - Black Grouse (Tetrao tetrix) male peforming flutter jump display on lek, Cairngorms National Park, Scotland, UK.May (This image may be licensed either as rights managed or royalty free.)
Sarus crane (Grus antigone), male displaying, Keoladeo NP, Bharatpur, India
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Bernard Castelein / Sarus crane (Grus antigone), male displaying, Keoladeo NP, Bharatpur, India
Aerial shot of a Humpback whale (Megaptera novaeangliae) swimming showing belly, Troms, Norway, January.
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Espen Bergersen / Aerial shot of a Humpback whale (Megaptera novaeangliae) swimming showing belly, Troms, Norway, January.
Aerial shot of a Humpback whale (Megaptera novaeangliae) showing belly and blowing, Troms, Norway, January.
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Espen Bergersen / Aerial shot of a Humpback whale (Megaptera novaeangliae) showing belly and blowing, Troms, Norway, January.
African wild dogs (Lycaon pictus) juveniles playing with the leg of an impala, trying to drag it in three different directions. Mkuze, South Africa. Commended in Glanzlichter photo competition 2020.
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Bence Mate / African wild dogs (Lycaon pictus) juveniles playing with the leg of an impala, trying to drag it in three different directions. Mkuze, South Africa. Commended in Glanzlichter photo competition 2020.
Emu (Dromaius novaehollandiae) juvenile with beak open to catch a leaf, Cleland Wildlife Park, South Australia, March. Captive.
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Steven David Miller / Emu (Dromaius novaehollandiae) juvenile with beak open to catch a leaf, Cleland Wildlife Park, South Australia, March. Captive.
Western Grebe (Aechmorphus occidentalis), pair during 'rushing' courtship display in which they run across water's surface in synchrony, near Escondido, California, USA, January.
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Marie Read / Western Grebe (Aechmorphus occidentalis), pair during 'rushing' courtship display in which they run across water's surface in synchrony, near Escondido, California, USA, January.
Red-winged Blackbird (Agelaius phoeniceus) male displaying in cattail marsh, Viera Wetlands, Brevard County, Florida, USA, January.
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Marie Read / Red-winged Blackbird (Agelaius phoeniceus) male displaying in cattail marsh, Viera Wetlands, Brevard County, Florida, USA, January.
Black-necked stilts (Himantopus mexicanus) pair performing post-copulatory display (as copulation ends, the male slides off the female leaving his wings draped over her and crossing his bill with hers...
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Marie Read / Black-necked stilts (Himantopus mexicanus) pair performing post-copulatory display (as copulation ends, the male slides off the female leaving his wings draped over her and crossing his bill with hers...