That's just due to human categorization and labelling of things, but isn't an absolute truth. My feeling is if we evolve into something with just a brain and n

That's just due to human categorization and labelling of things, but isn't an absolute truth. My feeling is if we evolve into something with just a brain and no body (with the help of technology perhaps) then that is something else. But you can also argue it is still human if that species has the same emotions. But maybe it wont.