Betta fish are one of the most popular aquarium fish in the world. Here is what to know about bettas, including how long they live.

After spending a month swimming solo in the dark confines of a storage unit, a betta fish named Cherry Bomb is finally living ...

The adventures of a Colorado college student's pet fish continue. Southwest Airlines wouldn't let Lanice Powless take her pink pet Betta fish "Cassie" on her flight home to California last week ...

Answer by Kirk Janowiak, wildlife biologist, fish-fancier for more than 50 years: Your fish has some cool adaptations that allow it to know when you put food into the aquarium.

Scientists found that the fish were gradually domesticated like dog breeds into the beautiful shapes and colors that turn up today in pet stores.

Betta Fish Getty Images How to Help Betta Fish No animal deserves to live its life in a confined area lacking the resources it needs to thrive.

Lily LaBrozzi, 5, of Pine has trained her pet betta fish, Max, to do a series of tasks such as swimming through tunnels, shooting a basketball into a hoop, going through a slalom course and ...