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Feeding Flamingos Create Underwater Tornado-Like Vortices to Capture Their Prey, Study Finds

  • Victor M. Ortega-Jimenez and his team investigated the feeding strategies of Chilean flamingos housed at the Nashville Zoo and associated research facilities to better understand how these birds capture their prey.
  • They investigated how flamingos use their feet, heads, and distinctive L-shaped beaks to produce vortices that concentrate fast-swimming prey like brine shrimp.
  • Flamingos stomp their flexible feet to churn sediment, jerk their heads upward at about 40 cm/s creating mini tornadoes, and chatter their beaks rapidly at 12 hertz to draw prey in.
  • Experiments with 3D printed models and flume tests showed that beak chattering increases brine shrimp capture by seven times due to symmetrical vortices recirculating particles into the beak.
  • These fluid dynamics principles reveal flamingos as active predators and could inspire new technologies for particle collection and filtering microplastics from water.
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Scientists have figured out why flamingos are such weird eaters

Flamingos look silly when they eat, but new research suggests they're actually being smart.(Image credit: Serhat Cetinkaya)

·Washington, United States
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Phys.org broke the news in United Kingdom on Monday, May 12, 2025.
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