Animals That Are Smarter Than You Thought

Since childhood, I firmly believe that animals are way smarter than we think. And that we human beings, as a species, are just being too arrogant. Scientific evidence proves that our planet is not the epicenter of the solar system, but today it also shows that we are not the only center of intelligence But what are considered levels of intelligence? How and who defines them? Do you think that some animals are way smarter than some people?