Today is the day that I learned about the “fish doorbell” in Utrecht, Netherlands.
You might think this is some common thing that was tagged with a quirky name, but you’d be wrong. (Don’t worry about it, I’m often wrong.) It is exactly what the name says: a doorbell (well, not a bell, exactly, but stick with me) that tells lock operators at the Weerdsluis lock on the Oudegracht that fish are waiting to head up or downstream, so they should open the lock to allow the fish to transit.
How do the fish know to ring the doorbell? Don’t be silly. Fish can’t ring doorbells! That’s where you come in!
Point your browser to this link and if you see a fish, click on the button to ring the doorbell.
Crowdsourcing FTW!