"Snakeheads." He nodded. That sounded like what he'd learned in biology. There were also American fish called mudskippers if he was remembering correctly. He smiled at Haru. "And yeah, they're probably pretty thick-skinned or...scaled, if they swim through the sand." Though that didn't explain how they were able to breath or anything like that. It was all very perplexing and he chewed his sandwich thoughtfully for a moment. Sure, having binoculars would have been helpful, but his third sight would be just as useful, they'd just have to make sure there wasn't anyone else around who might catch wise to what the perfectly normal teenagers were doing investigating deadly shark sightings.

"I think we have senses that will serve us well enough." He nodded again, standing after he finished his meal. It had been a light one, but that was preferable. If the sharks were aggressive, they may need to fight and they'd need to be prepared to do that. "As long as we make sure we're not followed. The adults don't need to know what we can do." Because they could certainly take on a sand shark or two if they needed to, but the local constabulary, for what good they were, didn't need to know that.

"We should be careful, though. I haven't found a weapon yet." Which meant in a pinch, he'd have to rely on his various Persona. They were certainly formidable, but they weren't exactly discreet.