Recreational interaction with marine mammals is not supported by the Marine Mammal Protection Act (MMPA) in the U.S. However, the MMPA does assign permits (Level A and Level B) to scientists and researchers to study dolphins in the wild.
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Dolphins have a remarkable long-term memory and can remember specific individuals, sounds, and even tasks they learned in the past. In fact, studies have shown that dolphins can remember things for up to 20 years or more, which is longer than most other animals.