Scientists have found Siamese fighting fish are typically kept in containers just one-quarter the size they need to thrive, challenging decades of retail practice in the ornamental fish industry ...

This is a Siamese fighting fish, Betta splendens. (Photo courtesy of Ivabalk, Pixabay) (CN) — Famous for its aggression, betta fish may soon be known for a milder trait: cooperation. When two Betta ...

New research has revealed that during combat fighting fish synchronize their actions and eventually their gene expression. The fighting fish Betta splendens is a species commonly used to study ...

Betta fish, also known as Siamese fighting fish, are often regarded as one of the most accessible and colorful additions to the home aquarium. With their flowing fins, vivid colors, and striking ...

A closeup shot of a pink female veiltail Betta Siamese fighting fish with aquatic plants in the background. Betta, or Siamese fighting, fish are among "the most popular freshwater aquarium fish in the ...

When two betta fish are fighting for dominance, not only do their attacks mirror each other, but the gene expression in their brain cells also starts to align. The new findings, published June 17th in ...