Great article from my favorite magazine, The Economist, on consciousness and the intellect of animals:
"Off Laguna, in southern Brazil, people and bottlenose dolphins have fished together for generations. The dolphins swim towards the beach, driving mullet towards the fishermen. The men wait for a signal from the dolphins—a distinctive dive—before throwing their nets. The dolphins are in charge, initiating the herding and giving the vital signal, though only some do this. The people must learn which dolphins will herd the fish and pay close attention to the signal, or the fishing will fail."
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