Betta fish—also known as Siamese fighting fish—are among the oldest species of domesticated fish. Their scientific name, Betta splendens, combines two languages: Malay for “enduring fish ...

The findings suggest that even though the betta fish are fighting each other, sometimes to the death, their brains may be cooperating at the molecular level. “By measuring aggressive behavior displays ...

Don’t be fooled by the tiny bowls bettas are kept in at the store. A single betta requires a minimum of one gallon of water ...

These are better known as Siamese Fighting fish, and while one may be hypnotic and mesmerising, they are tricky to keep and ...