If worms can survive temperature
extremes and a near-vacuum, 40 miles up,
then it begs the question can worms
genetically adapt to extreme conditions
where there is precious little oxygen
& water, cold extreme enough to turn CO2 into dry ice, and intense cosmic &
UV radiation? Mars.
Extremophiles have not been limited to bacteria here on Earth, why would they be limited elsewhere?

Could a worm be genetically modified to ingest peroxide-rich soil to obtain its oxygen in a near-vacuum?
Could it be genetically adapted to develop insulation against extreme cold?
And radiation? Worms can survive high radiation levels.

Jacob