At the core of this initiative is a simple yet effective idea introduced by ecologist Mark van Heukelum. Mounted at the Weerdsluis lock in Utrecht, an underwater camera captures live video footage of ...

which is a swarm of small fish that swim together to protect themselves from predators. Cinematographer Peter Mieras was testing his underwater camera when it fell to the bottom of the sound.

The Dutch city of Utrecht has installed a “fish doorbell” that lets online viewers alert officials when fish are stuck at a ...

When scientists in New Zealand checked the footage from an underwater camera, they expected to see a variety of fish and some sharks, and they did. But, much to their surprise, they had also recorded ...

When scientists in New Zealand checked the footage from an underwater camera, they expected to see a variety of fish and some sharks, and they did. But, much to their surprise, they had also recor ...