>>38019534>>38019579This is because the people who design pokemon, write their dex entries and assign them their stats and moves and such are all different. Occasionally, we get some weird dissonances.
Here's an example. Carnivine has Levitate and can indeed float as shown by its sprites and model.
However, the dex entries don't mention this at all, instead claiming that Carnivine moves by walking on its roots/tentacles. Thus, how a venus fly trap can just suspend itself in the air is never explained.