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.
Every animal is smarter than me in finding food in its ecosystem. As far as math and critical thinking, spiders and their webs come to mind.