Brain Junk

In the spring, fish like perch travel through the rivers in the Netherlands to find places to spawn. They used to get stuck behind Weerdsluis lock: waiting for it to open. But not anymore! A virtual doorbell was created to help let the lock keeper know they're there. Hot tip, starting March 3, 2025, you can go to their website to hit the doorbell!!!!Show Notes:Visdeurbel!Youtube: Dutch Wall FishScientific American article: Ring the Dam DoorbellBallard Locks fish ladderWolfenootMcGill Office of Science and Safety: Do Fish Drink This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit brainjunkpodcast.substack.com