The idea is simple: An underwater camera at Utrecht’s Weerdsluis lock sends live footage to a website. When somebody watching the site sees a fish, they can click a button that sends a ...

Fish are a type of animal that live in water. They breathe oxygen underwater through their gills. Fish can be found in freshwater, like ponds and streams, and also in salty seawater. Fish come in ...

The idea is simple: An underwater camera at Utrecht’s Weerdsluis lock sends live footage to a website. When somebody watching the site sees a fish, they can click a button that sends a ...