This is what happens on the earth. In spring, but not every year, bioluminescent firefly squid illuminate the Toyama Bay, Japan. As I live in the city, you may think it is easy for me to encounter the phenomena, but it’s not.
The blue lights on the sea coast are the glowing firefly squid of Toyama, Japan. Each tentacle has an organ called a photophore, which produces light. When flashed, these lights attract small fish, on which the squid can then feed.