[Chocaholic]

The recent thread about big-game hunting got me thinking. Both sides of the argument referenced a desire/effort to postpone or circumvent extinction of a given species. Here's my question. It's obvious that species go extinct as thousands (or perhaps millions) have done so since our globe solidified.

Why is it so important that we do things to avoid something that's unavoidable. All species go extinct. Heck, one day the sun will do the same. We can't stop it. So why not let natural selection do its job? Seems to me that we're overstepping our boundaries and abilities.

Thoughts?