** Due to this, it was impossible to complete a [[Generation I]] game using only Caterpie or Metapod, since Struggle couldn't hit Ghost types at the time.
* In the anime and in Pokémon Adventures, Caterpie holds the record as the Pokémon who takes the least time to evolve twice, taking only [[BW130|one episode]] in the anime and [[PS89|one chapter]] in Pokémon Adventures.
* Prior to Generation VI, Caterpie's body style was [[File:Body02.png]].
* In ''[[EP003|Ash Catches a Pokemon]]'', when Caterpie evolves into Metapod, the process was similar to a real caterpillar going into pupation. [[AG142|Later]] [[BW130|episodes]] show Caterpie evolving like the rest of the Pokémon do.