Aggressive little male fish from Indonesia turn black when angry to show their dominance, scientists discover. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

Whether you’re considering getting a pet betta fish or you already have one, understanding the lifespan of betta fish will help you know what to expect. Knowing how to keep your betta fish healthy and ...

Scientists have discovered the fossilized remains of a new fish species called Ferruaspis brocksi, which lived 15 million years ago, and some of the fish have their final meals preserved inside their ...