Also, whatever varieties of life, if I can say it that way, that may have been forming back in earth's early history, which ever form 'perfected' itself first would have absorbed the resources the others would have needed, so we are descendants of the first 'winners'.
Interesting to imagine perhaps a less clement world that had an inhospitable equatorial region (too hot!) and had northern and southern temperate belts form 2 different and non compatible life chemistries. I suppose, sooner or later the situation would change and the life forms would compete against each other, and the result would still be a world with a commonality in basic life form chemistry. But still interesting to work it out, and then maybe someday we find a world like that.
Hmm, the northern hemisphere of planet XCV-458 shows spectral signature of chlorophyll, but the southern hemisphere shows hemo-cyanozine . . .WTF ?!?!?!?!
Hey, it's a fun universe!
Interesting to imagine perhaps a less clement world that had an inhospitable equatorial region (too hot!) and had northern and southern temperate belts form 2 different and non compatible life chemistries. I suppose, sooner or later the situation would change and the life forms would compete against each other, and the result would still be a world with a commonality in basic life form chemistry. But still interesting to work it out, and then maybe someday we find a world like that.
Hmm, the northern hemisphere of planet XCV-458 shows spectral signature of chlorophyll, but the southern hemisphere shows hemo-cyanozine . . .WTF ?!?!?!?!
Hey, it's a fun universe!
