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.
Likely. Apes have better spatial recognition. Bees i think too, though different (large area vs. 3D). Also elephants and long-term memory.