Is Nature immoral? or Should pet cats be banned?

We found a baby mouse on the path. I guess it was dropped there by the neighbour's cat. I looked up "rearing orphan mice" on the Web, and decided that I was not going to be a workable substitute for a mummy mouse, given the immense labor involved in attempting to feed the thing, keep it warm, and possibly (according to one site) help it do its own poo.

(Boy, it would be good if baby humans only evacuated in response to parental stimulation, though! A whole swathe of problems would vanish in an instant!)

So poor baby mouse was gently abandoned in the hedgerow across the road. The Gospels assure us that God sees a sparrow fall, but they don't say that he actually does anything about it: which is why many people of a religious disposition find themselves unable to take traditional Christian doctrine at face value, and move towards deism (there is a God but he's not bothered), pantheism (God and the world are aspects of the same thing), or various nuanced forms of non-theistic faith.

Pet cats are a moral conundrum rather like holiday flights: dispassionately considered, they do such evil to the environment, and yet in human terms they have such apparent benefits in terms of well-being and fulfilment that it seems hard to campaign wholeheartedly against them.