Rain Collector Mouse

These scholarly students of rain history wait patiently for the storms to start before leaving cover, parading around out in the inclement weather with their special equipment, collecting as much rainwater as possible for closer scrutiny. These mice collect and date rainwater from as far back as they can remember, passing their collections down from generation to generation.

"This rainwater here is from the flash flood of the great downpour of '78! Oh, and this beaker here contains water from a storm on the same day the year later!"