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This postcard features a captivating image of a newborn gray whale “spy hopping” in the San Ignacio Lagoon, which is the last remaining untouched whale nursery on Mexico’s Baja California coast. The Natural Resources Defense Council (NRDC) is actively working to prevent Mitsubishi and the Mexican government from constructing the world’s largest salt factory at the Lagoon. The postcard is made from recycled paper and is a powerful reminder to save the gray whale nursery.