阅读下面短文, 从每题所给的 A、B、C、D四个选项中选出最佳选项。 In the coastal city of Laguna in Brazil(巴西), there is a special fishing team. It is made up of human fishers and dolphins! They work together to catch the same food-mullet(鲻鱼).
Mauricio Cantor from Oregon State University, US, studied this relationship. As he told Science News Explores, the cooperation started more than a century ago. "The dolphins are really good at finding fish and driving them to the coast," Cantor said. "Fishermen are really good at catching the fish with their nets."
Cantor's study described how fishers and dolphins give signals (信号) to each other during fishing. When dolphins find fish, they drive them to the coast. Then they arch (拱起) their backs in front of the fishers to tell them to cast(撒) nets. Fishermen will then cast the net s right away, or they may lose the best chance. Fishermen need to be well-trained to understand the signals from dolphins, said Cantor. Once the fish are caught in the nets, dolphins can move in and get some as their food.
The study found that fishers are 17 times more likely to catch fish by working with dolphins. At the same time, cooperative dolphins have 13% higher survival rates (生存率) than other dolphins."Human-animal partnerships give us an idea of how well our human can get on with nature," Cantor said.
▲ . There is a kind of bird named the"honey guide" in Africa. Their name can show what they do-they work with honey hunters(搜寻者). In return, the birds get their favorite food.