Atlantic bluefin tuna have it rough: In recent years, a growing demand for sushi has pushed the fish's population numbers to plummet by as much as 85 percent. Despite their dwindling numbers, bluefin tuna are not listed as an endangered species, and fishermen continue to catch them at unsustainable rates.

Jane Lubchenco, head of the National Oceanic and Atmospheric Administration (NOAA), said that if real progress isn't made at the upcoming International Commission for the Conservation of Atlantic Tunas, she would consider pushing for a moratorium on bluefin tuna fishing. Sign our petition asking Lubchenco to push for a moratorium now--it may be the only way to save bluefin from total extinction.