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 ...

For centuries, humans have been captivated by the beauty of the betta. Their slender bodies and oversized fins, which hang like bolts of silk, come in a variety of vibrant colors seldom seen in nature ...

A woman shared a video of her Betta fish's incredible transformation after being moved from a small shop tank to a proper ...