Norbert Wu / Electric Eel (Electrophorus electricus) can generate up to 220 volts, freshwater, Steinhart Aquarium, San Francisco, California
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David Fleetham / Whitebar surgeonfish (Acanthurus leucopareius) school in underwater cave, oxygenated water brought down by Pacific ocean surge. Kona, The Big Island, Hawaii.
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Chris Gomersall / Flock of White pelicans (Pelecanus onocrotalus) feeding at Kibbutz Ma'agan Michael fish farm, Israel. November 2012.
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Jeff Rotman / Flounder close up - face change (Pleuronectidae) MA, USA
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Jeff Rotman / Young flounders camouflaged on seabed. (Pleuronectidae) Atlantic, USA
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Staffan Widstrand / Wild Wonders of China / Sea bass and happy fisherwoman holding it, Shi Ma Jiao harbour, Guangdong province, China November 2015.
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Staffan Widstrand / Wild Wonders of China / Shrimp and prawn catch for the day, Shi Ma Jiao harbour,Guangdong province, China November 2015.
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Staffan Widstrand / Wild Wonders of China / Fish catch at, Shi Ma Jiao harbour, Guangdong province, China November 2015.