If we substitute for a frog a "Mr. Goodwill" or a "Mr. Prudence," and for the scorpion "Mr. Treachery" or "Mr. Two-Face," and make the river any river and substitute for "We're both Arabs . . ." "We're both men . ." we turn the fable [which illustrates human tendencies by using animals as illustrative examples] into an allegory [a narrative in which each character and action has symbolic meaning]. On the other hand, if we turn the frog into a father and the scorpion into a son (boatman and passenger) and we have the son say "We're both sons of God, aren't we?", then we have a parable (if a rather cynical one) about the wickedness of human nature and the sin of parricide. (22)
In April of 1992 McCandless gets dropped off near Mt. McKinley, and hikes into the wilderness. He spends the next sixteen weeks hunting small game, foraging, reading, and living in a deserted bus made to be a shelter for hunters, not seeing a single human the entire time. He is successful for the most part, although he loses significant weight. In late July, however, McCandless probably eats some moldy seeds, and the mold contains a poison that essentially causes him to starve to death, no matter how much he eats, and he is too weak to gather food anyway. McCandless is quickly incapacitated by the poison. Realizing he is going to die, he writes a goodbye message, and a few weeks later some hunters find his body in the bus.