"But how did you communicate with it?" Cui Man asked Xia Yu in confusion as she leaned over the ferry railing.
"By using a shark's bite force to take a bite out of the dolphin's dorsal fin. It didn't really hurt it, but it let me acquire some of a dolphin's abilities—mainly its hearing and vocal system," Xia Yu explained.
Dolphins communicated through sonar. Put simply, sonar was a kind of ultrasonic wave that human hearing couldn't detect. So long as one had a dolphin's vocalization and reception systems, one could communicate with them. Numerous experiments had shown that dolphin groups did indeed possess social abilities resembling language.
"Ah—!" Ye Wanqing couldn't take it anymore. She tugged on Xiao He's arm. "It's so cute! Look, it's smiling!"
Xiao He remained unmoved, while the Yangtze finless porpoise let out a series of squeaks. Xia Yu explained for it, "It says it only made it rain to improve the water quality. Life has been getting harder and harder for them here."
"Sigh, that's true. In recent years, water pollution and overfishing have caused the Yangtze finless porpoise's habitat to deteriorate drastically..." Cui Man said, covering her forehead in distress. "But the country recently issued the Yangtze Fishing Ban, so things should improve in the future..." As she spoke, Cui Man turned to Xia Yu. "Tell it that it can't use its Superpower again."
Xia Yu opened her mouth toward the Yangtze finless porpoise and made a few sounds they couldn't hear. The girl and porpoise communicated for a while.
"It says that if the water quality worsens, it'll still use its powers," Xia Yu explained to Cui Man. "They only want to survive. They don't want to hurt anyone. Humans are the ones who hurt them."
"..." Cui Man seemed to have