I'm not much of a fan of evolutionary __________ unless the blank is algorithms. The idea that you can look at an organism and say, "Well, maybe we have a female orgasm because we have big heads!" is as much a fantasy about the past as flying cars are a fantasy about the future. There are plenty of things to learn from evolution, and precious few things it can explain in retrospect. We're not perfectly crafted beings, everything doesn't make the best sense, and it doesn't have to because we keep fucking successfully.Among evolutionary scientists suicide is an extremely complicated and controversial topic. Not only is suicide difficult to study, it also appears to contradict basic evolutionary theory. If evolutionary processes program organisms to survive and reproduce, how could something as detrimental as suicide be selected for?
This kind of thing strikes me as a sort of basic misunderstanding a lot of people have about evolution: not everything about an evolved organism has been separately selected for. For instance people fall over all of the time. It happens. We trip. It's hard to see how tripping could be selected for, but the simple answer is that legs are selected for. Tripping is a byproduct of legs.