>>27739700>>27741459>>27741645>>27741650>>27741652A common strategy lots of quickly reproducing, exceptionally common Pokemon seem to have is the "minimum resource investment" when it comes to their 1st stage evolution/children and Zubat are a good example of this.
Investing resources in your offspring is always a risky endeavor because if they get eaten or die premature you've just wasted all these resources and compromised your own survival at the same time.
Zubat doesn't have any eye or nostrils and the only sensory organ it possess is an incredibly sophisticated echolocation system that allows it to "see" the world around it.
This is ALL Zubat needs to initially survive, using it's echolocation for finding: food, shelter and defending itself.
The older and more mature a Zubat becomes however the more it can personally justify investing more resources into it's development: involving into Golbats n' Crobats and developing more complicated and powerful defenses and abilities so it can go after larger prey items and defend itself more effectively.
So there ya go; something to think about.