When it comes to the single, solitary aquatic life, most people think of the goldfish in his little bowl. But there is another type of fish that lives in even closer digs, and is arguably better su… ...

Bubble Nests. Generally, only male bettas blow a bubble nest. Again, this is not absolute, as occasionally a female will blow a bubble nest. However, those instances are fairly rare.

In Thailand, people call betta fish "pla kat," which means "fighting fish," and it couldn't be a more appropriate name.Male bettas are known fighters, aggressively flaring their gill covers and ...

In 1975, scientists tried spaying a few hundred female betta fish. We all know what happens to spayed cats and dogs: They become sterile. Betta fish are different. A third of the surviving bettas ...

Betta splendens) photographed in Lincoln, Nebraska. Also known as Siamese fighting fish, they originally hailed from Southeast Asia but are now popular pets found in aquariums around the world.