Halo Effect: Swimmers in Thailand Surrounded by Clouds of Bioluminescent Phytoplankton

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When photographer Will Strathmann was recently in Krabi, Thailand, he decided to head out during a full moon to witness the effects of bioluminescent phytoplankton in the nearby Andaman Sea. His curiosity was rewarded by a small group of swimmers who were causing the microscopic organisms to light up by agitating the water around them. The result was this amazing shot. You can see more of Strathmann’s photography on Instagram. (via NatGeo)

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