Suelo is 48, and he doesn't exactly have a 401(k). "I'll do what creatures have been doing for millions of years for retirement," he says. "Why is it sad that I die in the canyon and not in the geriatric ward well-insured? I have great faith in the power of natural selection. And one day, I will be selected out." Until then, think of him like the raven, cleaning up the carcasses the rest of us leave behind.