Dutch Citizens are Using a “Doorbell” to Help Fish Pass Through Canal Gate

Dutch Citizens are Using a “Doorbell” to Help Fish Pass Through Canal Gate
Dutch Citizens are Using a “Doorbell” to Help Fish Pass Through Canal Gate

Tasked with helping ensure Utrecht’s canals remain full of life, and convincing everyone it wasn’t an April Fools’ Day joke, two ecologists in the Dutch city have invented the world’s first “fish doorbell.” An underwater, live-streaming camera at the “Weerdsluis” lock door allows residents to ring a virtual doorbell heard by the local lock keeper […]

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Source: Good News