posted on Dec, 6 2004 @ 01:00 PM
I happened to be watching a TV Prog on C4 yesterday about the possibility of ET. A leading astrobiologist (sorry, can't remember who they are) stated
a theory of his:
Look at life on Earth. Out of all life on earth there are only 3 different types of eye. That is in all creatures on our planet. Humans and squid,
despite evolving completely independantly of each other from basic single and several celled organisms.
apparently this shows that when presented with similar conditions to those on Earth, if the ingrediants of life as we know it (carbon, amino acids
etc.) are present, it is inevitable that evolution will take a similar route to that on earth, and the life on that planet will be 'eerily similar'
to that on our planet.
I'm not a believer, but this could be a possible explanation for Nordics, Greys and other humanoid aliens.
The other theory, the one i held completely until hearing this other one yesterday, is that alien life would be competely unlike that on earth, some
much so we may not even recognise it as life.
The way I see it, it is possible for both these hypotheses to be true, in fact they rather compliment each other. The evolution of life on Earth-like
planets may be like that on Earth, yet life as we do not know it may exist in completely alien (in its true sense) forms.
What do other people feel about this.
I'm generally fairly skeptical on alien topics, not being a greys/blues/nordics/reptilians etc. believer, but i can see the sense in both of these
topics from a scientific biology/astronomy position.