humans are almost a perfection of evolution, from a mammals point of view, we aren't exactly roaches, spiders, or many other insects prepared for the worst this planet has to offer, but we stand a chance. . the starving people are a bad side effect of our perfection, as humans we have managed to keep people around who would normally and unfortunately die from basic evolutionary concepts. . so going beyond natures scope of survival we have caused many problems for managing and maintaining this planet