Leipzig, Germany: Hunting and hunting continues at sea. It has now been revealed that small fish move together in the form of waves underwater to avoid their predators.
Just as the spectators in a football stadium stand in a line and take the form of waves, so the fish come together to form waves so that the big hunters will not eat them.
Sulfur radishes can live in springs containing hydrogen sulfide, which is why they are called sulfur radishes. Here the water is low in oxygen and they breathe on the surface where land hunters are waiting for them.
Scientists at the Leibniz Institute of Freshwater Ecology in Germany say that hundreds of thousands of fish have been spotted on springs at the same time. As the birds come to eat them, all the fish gather and begin to gather in waves just below the surface of the water. Their tails wave like a whip. All the fish do this together for two minutes.
But when the fish make waves, then the birds reach the water and wait twice as long to catch the fish as if they are scared of it. The fish use this tactic to protect themselves.