If you're squeamish about eating frog legs, you can now pretend it's because you're environmentally conscious and not just a giant baby who won't try new foods. The United States imports 2,280 metric tons, or 450 million to 1.1 billion frog legs, per year; Europe buys more than twice that number. This is putting frogs on the path to extinction by depleting natural populations and spreading the fatal chytrid fungus. Frogs are a carrier for the fungus, which is responsible for about 100 amphibian extinctions around the world.