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fish doorbell
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Fish doorbell season begins again letting people help migrating fish in Utrecht
2 March 2024 - 07:45
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Nature
Fish doorbell popular again: Over 105,000 attempts made to help fish in Utrecht
30 June 2023 - 18:56
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Nature
Utrecht's "fish door bell" and underwater camera is back online for third year
6 March 2023 - 16:50
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Innovation
Special fish doorbell in Utrecht successfully comes to a close
7 June 2021 - 18:45
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Nature
World's first fish doorbell pressed 32,000 times in first two weeks
14 April 2021 - 18:04