Ok so, I guess everybody knows Darwin and his theory, if you don't, just have a look here.
So now, the point being in question here is: everything evolves, it changes, it leaves behind something to become something else, nothing is eternal;
In other words, change is unstoppable, it's the nature of the reality itself that says so. And the more we dig into physics with quantum theories, the more we see this is true. Without movement and change there won't be existence.Nothing is created, nothing is destroyed, everything is transformed - Antoine-Laurent de Lavoisier
But we, as humans, sometimes tend to be conservative (this because of the survival instinct, "what worked well this time should work well next time as well", basically) and we (not all of us of course) feel somewhat compelled to "conserve" the nature, our planet, our status quo... but whatever we will do, the nature around us will change, even if we will spend all our energies in trying to prevent this, and we will adapt and evolve along with it (or become extinct).
The question now is, morally speaking, is that correct? Or would it be more proper to let the evolution do its work?
And even more:
Should we be trying to preserve the status quo for ourselves, or for the other living beings? Are we really responsible for how the evolution on this planet will develop, since when we became the ruling species?
And, to further expand:
When we explore the space, should we be careful in not influencing the natural evolution of other celestial bodies, or should we be exploiting any chance to spread the life in the universe? Is our world in any way different from the others, when it comes to how we should behave?
I believe that there are plenty of moral implications, either if we go one way or the other (or even with a mixed one), and frankly speaking I'm uncertain