Biochemical luminescence. That crazy catalyzing action in an earthly critter that produces its own light source. The best and simplest example is the firefly…which is actually a beetle (Coleoptera). In early summer, the male of the species self-ignites at nightfall, beaconing the familiar green glow in effort to reel in a female. And, well, the rest is history. In the deep, dark fathoms of the sea, similarly, vampirish looking fish emit light, but in this case to attract prey. Northland…