Slowbro is called the Hermit Crab Pokémon, which implies this odd Gen 1 Pokémon that requires a Shellder to evolve is a crab. This also explains why the Pokédex mentions the fact it can deevolve.
#pokémon #pokémoncanon #pokémonlore #slowbro #thehermitcrabpokémon

Multiple episodes in the Pokémon Anime have depicted Pokéballs as small cramped empty spaces on the inside. One example being from Pokémon Indigo League Season 1 Episode 27.
#pokémon #pokémonlore #pokémoncanon #pokéballs #pokémonanime #indigoleague

According to the Pokemon Illustrated Book Of Pocket Monsters Character Art Book Encyclopedia Pokedex Creatures Inc Guide Book, Porygon was created in 1995. A whole year before Red started his journey.
#pokémon #porygon #pokémoncanon #pokémonlore #gen1

In a Japanese PKMNB&W event you could receive a shiny Rayquaza ttiled Nobunaga's Rayquaza. This is a the Rayquaza owned by Nobunaga in PKMN Conquest.
#pokémon #pokémonlore #pokémoncanon #pokémonconquest #nobunagasrayquaza #rayquaza

In the episode The School Of Hard Knocks from the Pokémon anime, a character brings up the existence of evolutionary levels.
#pokémonlore #pokémoncanon #pokémon #indigoleague #pokémonanime