The firefly squid, or Watasenia scintillans, is the only commonly edible bioluminescent creature in the world. In Japan, the species is famous for the light show it puts on along the coast when it spawns each spring. That's when the fishermen of Toyama Bay, in central Japan, go out in the dead of night to harvest the squid by the bucketful. The fruits of their labors end up salted, grilled, boiled, or served raw in restaurants around the country. You can learn more about the firefly squid, and their harvest, in the video from Great Big Story below: