Swollen Fluorescent Sharks - David Gruber

Even when scientists know about a particular species, they might know all of its secrets. David Gruber explains that the swell shark, know for its ability to bloat in self-defense, is also fluorescent. Gruber, an expert on fluorescent and bioluminescent marine creatures, or, as he explains, "I like glowy things." Gruber is working to develop a "shark-eye" camera, to better understand what the world looks to a fluorescent shark as it navigates its blue-green world, 130 feet below the ocean's surface.