Flashlight fish get their name from their ability to glow. These fish can’t glow on their own, though. They get their light from tiny bacteria that live in their bodies. Readers learn more about these fish and the bacteria that give them their glow with the help of informative text and fun fact boxes. Detailed photographs of these fascinating fish bring readers into their ocean habitats, keeping them engaged as they learn important science concepts, including symbiotic relationships and food chains.