Broken Union

The … crew have made some astonishing discoveries on …. The abandoned settlements first seen from orbit were once inhabited by a society of reptiles that still populate the planet - but have since lost all capacity for sapient thought! In investigating how these creatures devolved from a tool-making agrarian society into mere beasts, … made an unexpected find. The burial remains of the settlement-dwelling reptiles possess a spinocranial organ not observed among their now-bestial counterparts. Testing has revealed these organs to be another species entirely - a sort of neural symbiont that connects with the host's brain stem via external attachment to the spine. These symbionts can still be found in hotsprings on the planet's surface. It seems the union between the two species triggered the temporary uplift of the reptiles. What later interrupted this symbiosis, however, remains unknown. … requests permission to study these remarkable neural symbionts more closely.

The command below will trigger the "Broken Union" event in Stellaris:

When this event fires, you can choose between these 3 options:

• Very well. Issue a special study.
  • Start special project: Neural Symbiont Study
• We don't have time for this.
• Organic societies: as fleeting as they are chaotic.
  • Society: +None to None