Mayflies on radar dense enough to look like rain
If you're a believer, this is the stuff that keeps you faithful. If not, this is the stuff that at least helps you understand the sensation of god-fearing.
Their genus name,
ephemeroptera, means "one-day wings." It's a hell of a day. In the adult form, mayflies' mouths have become vestigial. Flight and mating are their final acts, and their bodies are built for nothing else. You live your life under the water for a year as an ugly sea-monster, and are given grace and starvation in equal measure.
Image from
The Milwaukee Journal-Sentinel, via
Boing-Boing.