Bottlenose dolphins are clever hunters. Some work alongside human fishers, coaxing fish ashore. Others use shells to catch their food. In the Florida Keys, some use “mud rings” – and now the behaviour has been documented in the Caribbean too.
The mud ring hunting strategy is a case of blindsiding prey. A “ring maker” dolphin circles near the ocean floor and traps fish behind a ring of mud as others lie in wait with mouths open, and lunge to catch any fish attempting to escape the mud by jumping out of the water.
This behaviour had been seen only in the …
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