Some mandarin fish species (Sinipercidae) are pure fish-eaters, which feed exclusively on living juvenile fish—also of their own species. A research team led by the Chinese Huazhong Agricultural ...

Betta, or Siamese fighting, fish are among "the most popular freshwater aquarium fish in the world," PetMD reports. Native to southeast Asia, this species is known for its range of vibrant hues. There ...