Dolphins use shells as nets to fish

Researchers from the University of Murdoch (Australia) have found bottlenose dolphins ( Tursiops aduncus ) in Shark Bay (Shark Bay) that they fish using shells . Specifically, these cetaceans catch small fish by holding huge shells with their noses, which they then bring to the surface and wave over their mouths to account for the loot.

Although a few years ago the phenomenon seemed punctual, more and more witnesses have seen dolphins use this system, which indicates that the technique is expanding . The researchers still do not know "if the dolphins simply collect and use empty shells or if they previously manipulate them to trick the fish by making it seem like a safe place to hide," explains Simon Allen, co-author of the work, who hopes to be able to record the animals using cameras hidden in the shells to learn more about the sophisticated system they use to fish.

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