Mermay day 3: Nishikigoi (koi)
Koi fish trace their lineage to the humble common carp, first domesticated in East Asia over a millennium ago. In 19th-century Japan, rice farmers began carefully breeding these carp for their rare and beautiful colorations, giving rise to the exquisite ornamental koi. Their captivating beauty and cultural significance captured global admiration after their debut at the Tokyo Taishō Exposition in 1914.
















