Humans and dolphins have had cooperative relations dating back to Roman times. In particular, fishermen and dolphins can work as a team to fish. Here’s how it works: the dolphins will work together to herd schools of fish towards the fishermen’s nets. Once the fish are caught, the fishermen give the dolphins their share of the catch. This practice continues today in places such as Laguna, Santa Catarina, Brazil.
The United States Navy also has a dolphin-training program. While there has been speculation about dolphins being trained for combat, there are no hard dolphin facts that confirm dolphins have been trained for combat in the United States or in the former Soviet Union. The US Navy and other countries have confirmed that they train dolphins for detecting mines and rescuing people who are lost at sea.
