I’m gonna say no...humans may possess the ability to love and feel, walk and talk, but we are still learning there is no such thing as the “smartest on earth” considering that possible other parallel universes do exist, we could see something 10x smarter, also... if extraterrestrial life is real, they are also smarter, humans assume we are the smartest, and yet we go to court cases over murder when that shouldn’t even be happening, and 90% of the time, when it does happen, justice hardly prevails, ok, but that’s at the hands of other humans...and things we don’t know exist can’t top us, so are the smartest? no. because humans have one ability they must master, which seems to be impossible
to grow, to learn more, to perfect
humans always are trying to become the very best like no one ever was (Pokémon joke, and i’ll admit, im one of those people) some humans just can’t understand how growth works, and some still need time to perfect that, so no, humans are not the most intelligent species, but we are very close to being with a little time, maybe we could truly become the smartest