Gigantic Pinnipeds

A combination of deep sea echolocation and seismic telemetry has located the source of the deep vibrations on …. Its subglacial liquid nitrogen ocean is home to vast herds of gigantic pinnipeds who have adapted to life in this harsh environment. The remarkable creatures have the size and mass of a small transport craft. To communicate, they emit a powerful low-frequency drone that can reverberate on a planetwide scale. A uniquely collagen-rich blubber protects them from cryogenic burns and frostbite, while at the same time amplifying their calls across the sea. Lacking any natural predators in this isolated ecosystem, these large animals are curious, highly docile, and can be easily drawn to the surface by replicating their idiosyncratic vocalizations.

The command below will trigger the "Gigantic Pinnipeds" event in Stellaris:

When this event fires, you can choose between these 2 options:

• A unique discovery.
  • Unlocks building: …
  • Add deposit: +2
  • Society: +None to None
• Easy prey.
  • Food: +None to None
  • Add deposit: +6