Science tells us a lot about ourselves, the world and the universe around us, but science doesn’t know everything. Here are a few things to which you would think a quick Google search would give you the answer, but don’t even try. You’ll only find guesses.
Why are moths drawn to light?
Just because they annoy the shit out of you while you’re trying to turn the porch light off or sit by the campfire doesn’t mean that science has an answer for why these bugs take suicidal nosedives into lightbulbs. Some entomologists think they zoom toward artificial light because their internal navigation systems become thrown off. One roadblock in this theory is that although lightbulbs weren’t around while moths were evolving, campfires have been around for 400,000 years, which means moths would have been killed off by natural selection if they kept getting blinded by the light.
Another theory says that the infrared light spectrum emitted by candle flame has a few of the exact same frequencies of light as female moth pheromones, aka sex hormones. So basically the moths are trying to get it on, not by candlelight, but with a candlelight. This has its holes too, such as the fact that it doesn’t explain why they travel towards the artificial bulbs.