[Space]: Habitability modifiers for tidelocked and resonant worlds

[Flyndaran]

Originally Posted by pnewman

But nature includes lots of things that are much more radiation tolerant than humans (as well as some that are less so). It seems as if some transgenic modifications would probably help your space dwellers quite a bit.

GURPS Biotech calls Radiation Tolerance 2 a TL 9 species modification...

I'm talking more about reality rather than what may be gurps' excessive optimism.
Those creatures more resistant to radiation also have a much shorter lifespan.
There's almost certainly a reason why grass can take a lot of radiation, but trees drop dead more easily that humans.