Siamese fighting fish

Betta splendens is a Southeast Asian freshwater fish known for territorial behavior and the elaborate colors and fins bred in males.

Betta: Betta is a genus of freshwater fishes in the gourami family, Osphronemidae. Siamese fighting fish are one species within this genus.
Bubble nest: A bubble nest is a floating cluster of air bubbles used by some fish to protect eggs and young. Male Siamese fighting fish build nests for eggs after spawning.
Selective breeding: Selective breeding is the intentional reproduction of organisms with traits chosen by humans. Breeders amplified fin shapes and colors beyond typical wild forms.
Wild-type Betta splendens: Wild-type Betta splendens are naturally occurring forms with comparatively short fins and less intense coloration. They contrast with many long-finned, vividly colored aquarium strains.
Domestication of Betta splendens: Domestication of Betta splendens is the human-directed process that produced fish selected for combat and ornamental traits. Its history links wild fish to fighting strains and modern aquarium varieties.
Osphronemidae: Osphronemidae is a family of freshwater fishes that includes gouramis and bettas. This family places the species among labyrinth fishes.
Fish territoriality: Fish territoriality is the defense of an area against other members of a species or competitors. Aggression in this species is one instance of defended territory.
Aquarium: An aquarium is a water-filled enclosure designed to keep aquatic organisms. Captive fish require controlled water conditions and suitable space.
Domestic Betta splendens: Domestic Betta splendens are captive-bred strains selected for appearance and behavior. These are the familiar ornamental forms shaped by generations of breeding.
Thailand: Thailand is a country in mainland Southeast Asia. The species is native to Thailand, where it has a long history of keeping and breeding.

Linked from 1 page