Darwin was refering to animals. Give me a way of disproving, falsifying what he said in relation to what he was refering to in terms of kittens for example.
It seems that on metari1-world, bacteria don’t count among animals.
All right then, kittens it is: Divide a population of about 1,000 kittens into two groups of roughly equal size. Isolate them from one another. Let group one have free access to good quantities of clean, fresh water, while group two has access only to a small stagnant, arsenic-laced cesspool. If, after a few generations, group two is larger in number than group one, your dream will have been realised.
If not, there’s good reason to think that you’re having a nightmare instead.
'Luthon64