Humans and Dolphins Fish Together

In Laguna, Brazil, bottlenose dolphins have picked up fishing techniques from people. The dolphins signal by directing shoals of mullet toward the human fishermen. The fishermen cast their nets, catching some fish and driving others back into the waiting dolphins' mouths. Both humans and dolphins profit from this mutualistic activity.

While it has been demonstrated that whales may assist humans in hunting other whales, other aquatic species have also discovered the advantages of cooperating with people. Both species of dolphin have utilized us; they collaborated off the coast of Brazil.

Dolphins act as humans' eyes in this mullet-hunting scenario. Even though the fisherman cannot see the mullet schools in the water, they are prepared with nets. The mullet are pursued by dolphins, who eventually direct them to the humans. The dolphins will roll on the water's surface at the appropriate time to let people know they should cast the nets. The majority of the mullet will be caught in the nets, and any that managed to escape will break up in a way that will make it easier for the dolphins to catch them and take their share.