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A whale is a migrating species. That is, whale is not a species regionally confined in a single country, moving around the whole world. Therefore, it means that the whole world should try to make an effort to protect and conserve a whale.
However, because of indiscriminate overfishing, a number of whales and dolphins face extinction or about to get extinct. 'WOW' is a device installed in the course of whales' that sends a ultrasonic wave that a whale can hear when a overfishing ship approaches so that it helps whale escape.
Pocheon-si, South Korea