Zothecula writes "Fireflies have helped an international team of scientists get over 50 percent more light out of existing LED bulbs. It was discovered that in the Photuris genus of firefly, scales in the insect's exoskeleton possess optical qualities that boost the amount of bioluminescence that can shine through. Those same qualities were found to dramatically increase the light output of an LED bulb."
I've never been canoeing before, but I imagine there must be just a few
simple heuristics you have to remember...
Yes, don't fall out, and don't hit rocks.