India, Jan. 31 -- A young Russian performer had a terrifying experience at the Xishuangbanna Primitive Forest Park in China when a giant fish attacked her in front of horrified onlookers. The dramatic moment, which has since gone viral on social media, occurred as Masha, a 22-year-old mermaid performer, was swimming gracefully in an aquarium tank.

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Dressed in a bikini top and mermaid tail, Masha was gliding through the tank, waving at the spectators watching from outside the glass. The fish around her appeared calm, creating an enchanting atmosphere as she performed her routine. But the scene quickly turned into a nightmare when a massive fish a...