The article provides an insightful overview of the history and current state of the black caviar market, with a focus on the significant decline in production and the rise in cost due to overexploitation and a ban on sturgeon fishing. It highlights Russia's efforts to artificial breed sturgeons for caviar production, but notes that China has surpassed Russia as the global leader in caviar production. The article also touches on the rich historical background of caviar, dating back to the 12th century, and the unique characteristics of sturgeons.