Solvin Zankl / Bioluminescent Sea-fireflies (Vargula hilgendorfii) producing a bright blue light. The light is produced by mixing two chemicals together in the presence of oxygen and is for mating displays or defenc...
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Martin Gabriel / Arenal Volcano at sunset, clouds mixing with smoke, Costa Rica, February 2009
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Juergen Freund / Volunteer mixing eggs and sperm of pink salmon. Canada (Oncorhynchus gorbuscha)
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Juergen Freund / Volunteers mixing eggs and sperm from salmon in hatchery, Canada
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David Pattyn / Black Vulture (Coragyps atratus) and a Tukey Vulture (Cathartes aura) eating from a dead fish washed up the beach, Puerto Lopez , Santa Elena Peninsula, Manabi Province, Ecuador, July
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David Fleetham / Auger shell (Terebridae) eye to eye with Skeleton shrimp (Caprellidae sp), close-up. Blurry areas in the background where freshwater is percolating up through sand and mixing with saltwater. Philippin...
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David Fleetham / Skeleton shrimp (Caprellidae sp) on sea floor. Blurry areas where freshwater is percolating up through sand and mixing with saltwater. Dumaguete, Philippines
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Ashley Cooper / Clear water from Dettifoss waterfall mixing with glacial meltwater of River Jokulsa a Fjollum from the Vatnajokull ice sheet. Iceland, September 2010
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Solvin Zankl / Bioluminescent Sea-fireflies (Vargula hilgendorfii) producing a bright blue light. The light is produced by mixing two chemicals together in the presence of oxygen and is for mating displays or defenc...
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Solvin Zankl / Bioluminescent Sea-fireflies (Vargula hilgendorfii) producing a bright blue light. The light is produced by mixing two chemicals together in the presence of oxygen and is for mating displays or defenc...
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Solvin Zankl / Bioluminescent Sea-fireflies (Vargula hilgendorfii) washed up on shore, producing a bright blue light. The light is produced by mixing two chemicals together in the presence of oxygen and is for mati...
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Solvin Zankl / Bioluminescent Sea-fireflies (Vargula hilgendorfii) washed up on shore, producing a bright blue light. The light is produced by mixing two chemicals together in the presence of oxygen and is for mati...