Just to play devils advocate, I think part of what the OP may be saying is that our intelligence is mapped to our survival. From that perspective, animals can be more intelligent than a 2 year old. A stray cat is infinitely more capable of surviving the wild than a 2 year old human; they are more “intelligent” in that survival capacity by far. So again, to the OPs point, it depends on how we’re measuring intelligence; if it’s based on the skills humans are specialized for, of course humans will be shown to be more intelligent.