David F Mayer
Evolution is driven by a combination of:
Wed May 2, 2012 5:49pm
75.60.225.180

hereditary variation and selection.

David F Mayer

  • Sun's Twin Discovered! — c.c.keiser, Sun Apr 29 2:46pm
    Will we find another Earth? http://news.discovery.com/space/suns-twin-is-an-optimum-seti-target-120426.html 'Simply put, the nearby presence of a twin star potentially offers a fascinating experiment ... more
    • The situation will not be exactly the same. — David F Mayer, Sun Apr 29 4:04pm
      If there were a more ferrous ions in the oceans and the erodible land, then it would have absorbed enough oxygen to prevent the creation of an oxygen atmosphere as yet. The star could be hundreds of... more
      • Agreed....but... — c.c.keiser, Sun Apr 29 5:48pm
        the question remains could there be life to evolve? If so...is there any way to find out?
        • I consider life to be VERY LIKELY to originate — David F Mayer, Mon Apr 30 12:59pm
          on any Earth-like planet (in terms of composition, temperature, etc). But I suspect that the vast majority of life-bearing planets have only microbes as residents. I also consider it likely that Mars ... more
    • Potential responsibility problems.. — Tinfoil, Sun Apr 29 3:08pm
      I'm thinking Starfleet's Non-Interference policy. What if we find an extraterrestial civilization at,say,our level was prior to WW2? Do we give them our technology?
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