The central Dutch city of Utrecht has installed a “fish doorbell” that allows denizens of the internet to give a helping hand ...

The central Dutch city of Utrecht has installed a " fish doorbell " on a river lock that lets viewers of an online livestream ...

Much of the time, the screen is just a murky green with occasional bubbles, but sometimes a fish swims past. As the water warms up, more fish show up. Without the help, native freshwater fish like ...