Ring This ‘Fish Doorbell’ to Help Migrating Animals Get Through a Dutch Canal
An online underwater livestream lets worldwide volunteers ring a “fish doorbell” to help fish fulfill their reproductive missions
![Ring This ‘Fish Doorbell’ to Help Migrating Animals Get Through a Dutch Canal](https://static.scientificamerican.com/dam/m/4f5f284e61a1d887/original/Perch-examplefrom20211-ezgif-com-resize-tz-enhance-4x.jpg?w=1200)
An online underwater livestream lets worldwide volunteers ring a “fish doorbell” to help fish fulfill their reproductive missions
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