No normal person wants to die. But there are situations in which most, if not all, living creatures are willing to sacrifice themselves for the good of others or for the good of the species.

The male black widow spider fertilizes the female, and then she eats him (hence "black widow"). And there are a number of insect species where this kind of thing is part of the mating ritual. This perpetuates the species.

The whole of history—and today's newspapers—carry stories of people who have died to save another person, or who have been willing to die for a principle, be it patriotism, a religious belief, or what they consider to be some higher good.

But then, you can't really expect a person who has no principles to understand that.

Don Firth