Fish that only saw other fish on a screen, as well as fish with minimal social exposure, developed smaller brains compared with fish that had contact with live fish. Young guppies who were able to see ...

Young guppies who were able to see and interact with live fish developed larger brains than guppies who only saw other fish on a screen. This is shown in a new study from Stockholm University, ...

fish are allowed to die in the screen. The fish tests under way are supposed to show that the screen meets those standards. "Sometimes, things in the lab don't work the same way in the field. If we ...