Curiosity—the drive to gather information—is considered a fundamental motivation throughout the animal kingdom. As such, providing opportunities to satisfy that curiosity may be essential for animals ...

Trained goldfish showed a remarkable ability to accurately estimate the distance that they had swam. The neural circuits that underpin spatial navigation in mammals, birds, and reptiles are well known ...

Goldfish may not have bad memories after all, as they can keep track of how far they have swum. Scientists trained goldfish to swim 70 centimetres, then stop when someone waved over their tank. When ...