What is a betta fish? Betta fish—also known as Siamese fighting fish—are among the oldest species of domesticated fish. Their scientific name, Betta splendens, combines two languages ...

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 ...

Betta fish, also known as Siamese fighting fish, are famous for their vibrant colors and flowing fins. While they are common ...