Something, probably the brain, from a heavily-mutated animal.
The spinal cord gives way to a chaotic tangle of loose neural fibers without any of semblance of a solid anatomy, and the whole mess is visibly shrinking now that you got it out of the creature's liquor.
The spinal cord gives way to a chaotic tangle of loose neural fibers without any of semblance of a solid anatomy, and the whole mess is visibly shrinking now that you got it out of the creature's liquor.