I just heard of it, myself, but there's really people who can actually understand what pokemon say. I just met somebody who... well, we talked over the gears, but - anyway, I met somebody who can talk to them, and she said that she could talk to animals back where she came from, too. It sounded kind of nuts, but she was really able to help out my Kakuna.

Anyway, you might be able to meet others like that if you ask around the network. Or, if you don't want to go that far, you can probably ask someone when Metapod's supposed to evolve. Who knows, maybe he just needs a couple more levels.