I guess my subtlety was too subtle
I didn't just bring up Covid to be community-minded. I also brought it up because new strains of it are fighting against our immune systems and our medicine, including our vaccines.
This, by itself, is evidence of evolution.
The strains which can proliferate the fastest and aren't killed by our medicine are the ones most likely to survive. In time (and since microscopic organisms live fast and die young, it's easier to see it), as the weaker strains die out, the species is changed. AKA it transforms. AKA it evolves.
Evolution requires two things, and two only.
1) Live long enough to reproduce and
2) Do so
As Hillel said (under different circumstances), all the rest is commentary. Now go and study it.