The Art Nouveau market in Valencia, Spain, is a wonderful building and a great market to visit if you’re in that fantastic city. But too often in markets I see things that don’t make me very happy. Shark populations are plummeting worldwide–as are so many populations of marine life. Sharks are top predators in their environments, and also scavengers, so they play important roles in the ecological cycles of the oceans. Sharks are often caught, their fins cut off, and the rest of the body dumped. Boycott shark products.