Arrested Evolution: Pokémon's Refusal to Grow Up

Young PGL Pokemon by SilyaBeeodess on DeviantArt

Pokémon Go' Prepares For Its Next Evolution with Battle League Season 1

Do Pokemon Age?

Brock (anime), Pokémon Wiki

Has Pikachu ever been inside a Poké Ball after joining Ash? - Quora

Arrested Evolution: Pokémon's Refusal to Grow Up

Ash Ketchum, Pokémon Wiki

Ash's Charizard, Pokémon Wiki

Pokemon 2050 Shiny Diglett Pokedex: Evolution, Moves, Location, Stats

In Pokemon Emerald, if I train Pikachu up to level 99 without evolving, will it have the same stats with a Pikachu evolved into Raichu? - Quora

Caught it at this CP.. I'm not touching it, ever. : r/pokemongo

What If A Pokemon Grew Instead Of Evolved?