Pulsing light amidst night Unknown source tempting force Anglerfish glowering gnarled kiss Hide countershade outline fades Blackened abyss Light is death Bioluminescent defenses Pensive glowing and wondrous Bioluminescent defenses Pensive glowing and wondrous Deadly beauty Crushing weight Hidden meals Microbes reveal For what function? Finding mates Hunting prey Manage escape Convergent trait Evolved fate Mother Nature Puzzle solver