Goldfish in aquarium. Keep a close eye on your pets for any changes in appearance or behavior. This will help owners to address concerns before they become major health problems. Goldfish in aquarium.

These large-eyed nocturnal predators snag food out of the air: Ogre-faced spiders don't need ears to 'hear' their prey, study finds. It's not impossible for a goldfish to grow to nine pounds ...

They have big eyes that allow them to primarily rely on ... He says goldfishes' memory can last for weeks. In one experiment, goldfish were conditioned to push a lever at a certain time of day ...

Have you ever watched a bulgy-eyed baby goldfish swim around its new environment, or glimpsed a big-eared infant bat perched in a tree? And then realized you were thinking those features ...

“A fish would have to have a really big mouth to eat it,” she said. The feral goldfish are also destructive, uprooting and consuming plants that are home to native species. They help spawn ...

Have you ever watched a bulgy-eyed baby goldfish swim around its new environment, or glimpsed a big-eared infant bat perched in a tree? And then realized you were thinking those features ...