• Gozzin (edited 6 years ago)
    +3

    Two of the four raccoons that got the marshmallow during training then learned on their own to pick up stones off the ground and drop them into the water to get a reward. A third raccoon surprised the scientists by inventing an entirely new method for solving the problem. She found a way to overturn the entire, very heavy, tube and base to get the marshmallow reward.

    I'd say the third one was the smartest.