Chicken
The chicken demonstrates extraordinary biological adaptability. From arctic conditions in Siberia to tropical environments in Southeast Asia, chickens thrive across virtually every climate humans inhabit. Selective breeding has produced over 500 distinct breeds, ranging from tiny bantams weighing 500 grams to Jersey Giants exceeding 6 kilograms. Chickens adapt readily to free-range, caged, and backyard environments alike. Their omnivorous diet allows them to consume grains, insects, kitchen scraps, and commercial feed with equal facility. This remarkable plasticity explains their global success.
Death
Death exhibits perfect and absolute adaptability. It operates equally effectively in all environments, at all temperatures, across all species. Death adapts to advances in medicine by finding new vectors; it accommodates changes in lifestyle by adjusting its timeline. When one cause of death is eliminated, others emerge to maintain death's inevitable presence. Death requires no evolutionary adjustment, no selective breeding, no environmental modification. It simply persists, the ultimate adaptive system that has never failed to reach any organism eventually, regardless of that organism's own adaptive capabilities.