>>58828098The point I'm making is that humans in the Pokemon world determined that there should be uniform classifications to denote commonalities between different species, and that while those species are wholly distinct, they have common ancestral roots that warrant viewing the correlation. Thus, they figured out Pikachu should be known as a "mouse" because they recognized there are other Pokemon with similar qualities, and they gave that shared commonality a name, deeming them "mouse" Pokemon.
It's just that, looking at it solely from an in-universe lens, it's pure coincidence that those terms are also ones we recognize from real life, and one could argue they derived the name "mouse" from Tandemaus and Maushold, given Pokemon's worldbuilding loves to connect the origin of human constructs to being inspired by Pokemon in some shape or form (i.e. people made ice cream cones look the way they do because they were inspired by Vanillite's appearance).
