Let me elaborate, how likely is that there’s an animal on earth that’s smarter than us? By smarter, I understand intelligence is a nuanced topic unique to different animals, so for the sake of argument, let’s talk about, mathematics, critical thinking about where and how to apply those mathematical concepts, and creativity in any form.
I think humans are not really more intelligent than most beings; we have a unique ability to manipulate physical things, but most animals are not crazy enough to follow and do that because our species pays a very high price for that in happiness.
It’s that sacrifice we all individually made to be like most other humans, as babies, that make us think our way is superior and look down on other animals.