If intelligence so-called is a property of non-human animals or artificial beings then we will unearth what that measure is given time.

If intelligence is only a property of humans then it is a purely cultural construct and we can define it any way we like: some say it is the capacity to adapt to the environment in which you find yourself, some say that it is 'g', others talk about emotional intelligence. Who's right? Who gets to decide the rules? Those with the strongest will, the loudest voice, the most humane description?

By any measure, most humans are dumb including you and including me.