鱼群行为：泰国玻璃鱼群大规模躲避在珊瑚礁壁旁

ds of glass fish (Parapriacanthus ransonneti) press into a dense, shimmering mass directly against a reef wall in the Andaman Sea, compressing their school to its tightest configuration as a predator-avoidance strategy. At this density, individual fish are visually indistinguishable from the mass, a phenomenon known as the confusion effect, which overwhelms a predator's ability to single out a target. The reef wall substrate behind them shows significant algal colonisation across previously living coral. 4K, horizontal, close diver POV. Andaman Sea, Krabi Province, Thailand.

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