Three types of lizards coexisted in sympatry in a certain desert. The sizes of their prey were staggered in accordance with the sizes of the three types so that there were no overlaps.
Somewhere inside a rainforest was the habitat of fourteen types of pigeons, which could be categorized into four groups based on their sizes. It just so happened that the four groups each fed on a different size of fruits.
Such were the examples of natural resource allocation—that was, the difference on the choice of resources formed naturally so as to ensure the species' survival while reducing the competitive consumption within the same species.
The allocation in nature was determined by natural competition, whereas that of the human society was the result of system and ideology.
Its single basic rule was: the dominating side would always take over the majority of the resources, leaving a less significant amount to the weaker ones.
