Yn erthygl , sgrifennodd
Col :
I have heard that without a moon life outside the sea would never
have developed because there would have been no rock pools
as a 'stepping stone' to land.

Of course that is simply untrue anyway, as the sun is responsible
for an element of the tides. I suspect at the distance that Mars
is from the sun, were there any seas on Mars the tidal influence
of the sun may be minimal (but I'm not going to do the calculations...)
but here it's not.

Adrian

--
Adrian Shaw ais@
Adran Cyfrifiadureg, Prifysgol Cymru, aber.
Aberystwyth, Ceredigion, Cymru ac.
http://users.aber.ac.uk/ais uk