Do you have a source for solar radiation causing mutation to make wolves hair grow thicker? Interested to know more, particularly why this isn't simply a form of epigenetic inheritance or phenotypic plasticity?
Re: natural selection, such is ultimately survival of the fittest. It doesn't cause change, but removes the weaker species -- that which can not/do not adapt to their environment. So as you say, it really can't be the driving force of evolution. It is just a logical process in the equation that leads to extinction of a species that is no longer fit to survive in its environment and cannot migrate elsewhere.
So then, re: God and evolution, you see a little of both -- some mutations as purposeful (e.g., I suppose those that lead to humanity), while God in other instances just let evolution randomly unfold.
To turn away from physical science, towards Christian theology (as both side of the coin are obviously relevant here)... How do you see the role of Holy Spirit in the world? The person in the Trinity who is often considered the sustainer of life. I basically consider the Holy Spirit as being responsible for everything holding together such as natural laws, spatio-temporal dimensions, mass, energy, matter, etc all run in a stable and predictable manner. This also has a follow on effect, such that God really is omnipresent in His creation, saturating every part of it, such that chaos does not reign but rather predictable and structured natural processes. Is it really possible to think that God is devoid, or withholds himself, from any of His creation such that something can happen without His sustaining power?
The solar radiation - thick fur thing was just an example.
While solar radiation has been shown to be one of the causes od mutation, I don't know of there is a direct link to thicker fur, it was just an illustration.
I have come to see that much in life, theology and science, is rarely a case of either/or as much as some people make it up to be.
The HS is a thread unto itself, truly.
There is so much of the HS in everything.
When we speak of God's HS, that is the sustaining force of the universe.
When we speak of the HS as our advocate, we speak of Christ.
When we speak of the HS as He that seals us, that is the Person of the HS.