According to the Pokédex
A Mew was discovered in Guyana, South America,
And real animals (Indian Elephant) are mentioned in the pokedex and a few lines of dialogue in every other mainline game.
It's never been a secret that it was our world with a slight twist. I don't know why people act like it is.
<blockquote>According to the Pokédex.
It is Earth.</blockquote>
There aren't regular animals and the pokedex isn't made by people originating from the pokemon world.
Like I said, it is a parallel world where things went different.</quote>
No. In X and Y, real world butterflies appear in the background at some places during Pokémon battles.
Pokémon World is in fact. Planet Earth.
Earth just means ground. Lots of people name their planet Earth or some synonym. It's the obvious name when you don't know of other inhabited planets to distinguish it from.
a Mew was discovered in Guyana, South America. So, it's planet Earth.
Girls are like Pokémon.
There are different types of them.
Some are incompatible and some are compatible.
You'll capture a few compatible ones in Your Life timeline.
If You have a good successful catching rate, you'll get lucky.