Comments like these make "fake news" make sense: two people perceiving the same things drastically differently.
It's one word: language. No other animals come close. Animals signal to each other all the time, and none of it is nearly as complex or beautiful as language. You could make an argument for oral language being essentially the same as signaling but writing really blows any other behavior of animals out of the park.
Whether or not you consider that to be "little" makes an insane amount of difference.