However, once the number of the Mechanical Race increases and they form a cluster, the pollutants they produce will cause extreme damage to the normal ecological environment.
And even the Mechanical Race itself does not have a good way to handle these pollutants.
So their method is to first find a place to store them, store them up to a certain amount, and then release them into the environment.
To the Mechanical Race, whether a planet is habitable is irrelevant, as they themselves are not affected by these pollutants, so it doesn't matter which planet they are released on.
This is the reason why the Insect Race can track the Mechanical Race; each individual of the Mechanical Race carries these nanorobots that produce pollutants.
The nanorobots are the Insect Race's markers.
