where it could get a ball (out of several options, with cubes, rings, etc.) in order to claim a reward—to 6 Sentential, where it could get “two yellow balls”, etc. The parrot just had to think for a very long time to figure it out, its brain being much smaller than a human one. This means that a human at the same stage, but having a far “higher IQ”, would reach the same conclusion as the parrot, just at a much faster pace.
