I once read about some research trying to argue that it was possible for an organism to accumulate multiple mutations that are neither positive nor negative on

I once read about some research trying to argue that it was possible for an organism to accumulate multiple mutations that are neither positive nor negative on their own until you reach a point where the combination of traits as a whole might imbue an evolutionary advantage. At the point where this happens moar of the traits would have already spread throughout the breading population and would allow “rapid emergence” of a new trait in a species. But to be honest, without looking into it I would assume that any math the brain is able to do would emerge with sight and spacial awareness and if I needed to check it could look into aquatic animals with less evolved eyes to see if they are somehow “less able” mathematically. And because I am not a biologist I am sure somebody did something like this already to get his or her PHD.