4 ms·

As much as I'd like to entertain this idea, we have a pretty clear evolutionary history on Earth. It seems unlikely that humans have any direct Martian origin.

As much as I'd like to entertain this idea, we have a pretty clear evolutionary history on Earth. It seems unlikely that humans have any direct Martian origin. It is very possible that aliens once lived on and destroyed Mars, though we have no evidence to support that theory. Over the course of hundreds of thousands or millions of years, obvious traces of them would have disappeared. Who knows - maybe we will find something under the surface.

nashashmi 12y ago
Do I need to remind you that no clear connection has been traced between Humans (and its evolutionary path) to any other creature? Attempts have been made to get closer to a common ancestor but all have failed. P.S. Not that I support the OP's line either.
- roywiggins 12y ago
  We share a common ancestor with every single known living thing. http://en.wikipedia.org/wiki/Last_universal_ancestor http://en.wikipedia.org/wiki/Last_universal_ancestor
  - nashashmi 12y ago
    Those are theories. But time and time again, researchers have sought to trace where the evolution path branches off. So far: no dice. And that means a theory of humans coming from another evolutionary path not found on earth still may hold merit. Because it has not been disproven yet.
    - roywiggins 12y ago
      The odds are heavily stacked in favor of a universal common ancestor. We share like 99% of our DNA with chimps; how do you suppose we got that, if we didn't share an ancestor? http://www.ncbi.nlm.nih.gov/pubmed/20463738 http://www.ncbi.nlm.nih.gov/pubmed/20463738 > Among a wide range of biological models involving the independent ancestry of major taxonomic groups, the model selection tests are found to overwhelmingly support UCA irrespective of the presence of horizontal gene transfer and symbiotic fusion events. These results provide powerful statistical evidence corroborating the monophyly of all known life.

nashashmi 12y ago

Do I need to remind you that no clear connection has been traced between Humans (and its evolutionary path) to any other creature? Attempts have been made to get closer to a common ancestor but all have failed. P.S. Not that I support the OP's line either.

roywiggins 12y ago
We share a common ancestor with every single known living thing. http://en.wikipedia.org/wiki/Last_universal_ancestor http://en.wikipedia.org/wiki/Last_universal_ancestor
- nashashmi 12y ago
  Those are theories. But time and time again, researchers have sought to trace where the evolution path branches off. So far: no dice. And that means a theory of humans coming from another evolutionary path not found on earth still may hold merit. Because it has not been disproven yet.
  - roywiggins 12y ago
    The odds are heavily stacked in favor of a universal common ancestor. We share like 99% of our DNA with chimps; how do you suppose we got that, if we didn't share an ancestor? http://www.ncbi.nlm.nih.gov/pubmed/20463738 http://www.ncbi.nlm.nih.gov/pubmed/20463738 > Among a wide range of biological models involving the independent ancestry of major taxonomic groups, the model selection tests are found to overwhelmingly support UCA irrespective of the presence of horizontal gene transfer and symbiotic fusion events. These results provide powerful statistical evidence corroborating the monophyly of all known life.