>>58222607
>Its actually kinda horrifying that they naturally shrink because that means that at any moment there could be a really powerful pokemon that you didn't see that finally recovered and returned to full size. Like what if you are walking through the woods and suddenly a full size Ursaring pops up in front of you?
Anon that's literally the idea behind "don't get into the tall grass".
If you get into an area where pokemon tend to be you can randomly encounter a pokemon you didn't see. How? How does an Ursaring pop out the grass? How can a Drudiggon go unnoticed until it wants to fight you? Why is that even a small egg can contain a fucking Onyx?
Because they shrink. Because Aggron, Gyarados, Pangoro, Charjabug, Baxcalibur and every other pokemon can be the size of a Joltik (if not smaller) and surprise you at any time.