While comparing to the wild is an interesting concept - I don't think any of the strategies you give are solutions to human evil. Animal preditors are supposed to be preditors so they can eat and survive. Human crime and evil appears to be different. Human evil is basically rooted in a lack of the ability to have empathy. Most humans, through normal development, develop strong or at least basic empathy for others. This is why most humans avoid murder, rape etc - as we understand on a basic level that life is too sacred to be sacrificed for selfish goals like profit or sex. Some people (for whatever reason - the devil, malformed brain etc) lack all empathy. They have no problem killing you for the $10 in your pocket, or torturing you just for the fun of it. This is not really linked to "survival" as they can survive without it, but it is linked to thier absolute inability to place any value on your life or suffering - they only value whatever small thing they want and do not care about the consequences. So, as for a strategy to "solve it" - We probably need to figure out how to do brain scans or whatever to indentify people who lack empathy, and put them away so they can harm no one. I understand there is a moral problem with that in ourselves, but that would solve it pretty much.
A big part of the problem now is that when we indentify someone lacking empathy (for example, when we catch a sex offender that has killed a child) - right now we make the mistake of (1) approaching them with empathy as if they are humans that have empathy. So our currrent system gives "second chances" to people that should never get a second chance, because they are evil to the core. We let out the sex offender with a second or third chance, as it seems like the right thing to do on a human level to forgive, but they then go kill more innocent victims that should have been protected.
Likewise (2) our goverment doesn't have the funds to house all of the defective prisoners, so to save money they let the voilent criminals go. So the goverment is choosing to put good humans are constant risk to save money.
So in sum we need to (1) indentify people who lack empathy and act to stop them in the first place.
If we fail to stop the crime we then should never ever let them go into good society, no matter what the costs or how horrible it seems to us morally. That is the only logical and effective way to achieve greater good.