Goldfish may look small and cute in your home ... about the size of an American football! These big fish are also big eaters, feeding on plants, insects, crustaceans, and other fish.

They were prompted to investigate after hearing mysterious clicking noises coming from the fish tanks in their lab ... of this ability to make a big noise to help them communicate.

Fish tanks are ubiquitous—found in doctor’s offices ... and provide some relief for those suffering from Alzheimer’s disease. They can be big or small, plain or fancy, and they come in every ...

This post was updated Dec. 7 at 12:45 p.m. This weekend, UCLA theater audiences will be invited to dive into the fish tank.