Fungi that could parasitize other lifeforms were not very rare in nature.
As long as the environment was suitable, every civilization would basically be able to find something similar on their mother planet without having to fly.
Most of them were parasitic toward insects. These fungi adapted to the environment by controlling the insect's body to achieve their growth and reproduction needs.
It was not that there were no fungi that could parasitize higher-level animals, but most of them existed as diseases. Usually, they would not cause the death of the host, nor would they control the host's brain.
The typical case was athlete's foot, which was common among large primates.
However, if the range was expanded to interstellar space, it was very normal for a fungus to exist that could parasitize and control most lifeforms, right?
