Human Superiority and Extraterrestriality

The increase in Human longevity over the centuries might be taken as confirmation that Survival is the fundamental principle of Evolution.  However, while such evidence might indicate the superiority of some humans to others, it does not correspond to the fundamental Evolutionist premise of Human superiority with respect to other species.  So, better evidence for that premise might be the likelihood that a human with a rifle will outlive a rhinoceros with a tusk.  Nevertheless, another example of Human survival might be a better indication of its Evolutionist superiority to other species.  This is its ability to adaptively function where, according to the best evidence, no other species has been able to--in an extraterrestrial environment.  Such a change of habitat is even more radical than that of a marine species to land, since the new environment is, apparently, hitherto  uninhabited by any terrestrial life. Now, it might be out of instinctual worry about the long-term inhabitability of the Earth that has driven Humans elsewhere.  But, that such potential uninhabitability seems to be the product of Human invention, e. g. an effect of industrial pollution, itself tends to undermine that popular thesis.  So, the stronger hypothesis is that the extraterrestrial survival, as relatively short-lived as it has been thus far, that is unique to the Human species, is evidence of a superiority that consists in its greater functional complexity, the drive to which is its fundamental principle, i. e. is independent of the inhabitability, or not, of the terrestrial environment.