That is the way she does her housecleaning. This is not an opinion, this is a fact of life. If one is not strong enough to compete, one becomes food. After all we do need a healthy planet to lead a healthy life. Check out the worlds sudden decrease in the frog population.
Frogs have one of the most delicate metabolisms.
Very indicative of the 'changing' or 'pollution' of the environment. Kind of like natures barometer. I haven't the foggiest notion, just something to think about. Actually the answer is no. If you want to know why, Look at the human animal and ask yourself just what is it we are preserving and maintaining.