In 2017, University of Washington ichthyologist Luke Tornabene was inside a small submersible called Idabell near the island of Roatan, Honduras. Sitting next to him were a masters’ student in his lab named Rachel Manning, and a pilot. They were collecting samples of marine life 550 feet deep when they spotted an unfamiliar bright blue and yellow fish. “We knew it was something new before we even got it into the collection tube,” Tornabene says, excitement still clear in his voice.