>>55879060To become more powerful. This could be used to signal status in social network, or to better compete. It could also be used to fill different niches in the enviroment, as pokemon evolution is a radical change.
A real world example is Orangutans, specifically males. Males will only develop the full faces (and get bigger) when they feel they are a dominant male, and some will never develop them. Both are still adult males, but one has "undergone" evolution.
