A speculative medical or biological procedure involving the transplantation of tissues, organs, or genetic material from an alien lifeform into a human (or vice-versa). It's the ultimate transplant surgery, facing monumental challenges of bio-incompatibility, novel immune responses, and fundamentally different cellular chemistries. The goal could be to confer alien adaptations (radiation resistance, toxin processing) to humans, or to repair human injuries with robust alien tissues. It sits at the terrifying and fascinating intersection of xenobiology and surgery.
Xeno-Grafting Example: In a sci-fi setting, a human settler on a high-radiation world receiving a graft of photosensitive, self-repairing skin from a native "stone-hide" creature to protect against solar flares would be Xeno-Grafting. The procedure would require suppressing the human immune system while also preventing the alien tissue from metabolizing the host's body for its own, incompatible needs.
by Abzugal Nammugal Enkigal February 3, 2026
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