Subject: radiation and evolution at varying ocean/eartth depths

Hello and happy new year
Can you tell me if any research has been done and any conclusions drawn on the 
following:
is there a link between ocean depth/earth depth and the degree of evolution of 
life. i was thinking that maybe genetic mutations might be driven by radiation 
from space, and as such, the oceans and the earth might partially or in some 
cases totally block this radiation, and as such, life living at various depths 
might have differing rates of evolution.
Thanks
Jason Bloomfield

Re: radiation and evolution at varying ocean/eartth depths