Cover by Zhangyu~↑
In the mid-nineteenth century, biologists in Britain had a chance to observe this phenomenon. In Manchester, an industrial city in England, countless white moths lived among the pale trees, blending in so well that birds had trouble spotting and catching them. A small number of these moths were black, making them easy prey for predators. As a result, few black moths survived to reproduce. But industrialization covered the trees in soot, making the white moths easier to catch. The black moths, on the other hand, now had the perfect opportunity to survive long enough to reproduce. Fifty years later, their numbers had grown from less than one percent to ninety-nine percent. (Zhrlish and holm, 1963, pp. 126-30)
So, am I a white moth or a black moth?
The second short story by Zhangyu
The idea: