No idea about the raw idealized intelligence. However one of the biggest advantages humans have as far as societal living and advancement is language, both spoken AND written. Spoken languages are fairly niche amongst species of the world though there is evidence of many mammalian species that have at least the basics of it.
However written language is unique to humans. That alone regardless of any other measurable aspect of “intelligence,” has placed human society firmly at the top of the earthly animal kingdom.
No idea about the raw idealized intelligence. However one of the biggest advantages humans have as far as societal living and advancement is language, both spoken AND written. Spoken languages are fairly niche amongst species of the world though there is evidence of many mammalian species that have at least the basics of it.
However written language is unique to humans. That alone regardless of any other measurable aspect of “intelligence,” has placed human society firmly at the top of the earthly animal kingdom.