US' California caviar is a booming business, with the state's sturgeon farmers profiting from the downfall of Caspian Sea caviar. An industry that was previously monopolised by Iran and Russia which produced 95 percent of world's caviar supply, California sturgeon fish farmers are set to change that. Sturgeon have been swimming around for 250 million years, long before the dinosaurs or, needless to say, human gourmets came on the scene. Al Jazeera's Rob Reynolds has the story from California.
