Fun fact: Einstein’s brain was smaller than the average person. It’s theorized that the electrical impulses that travel through the brain could travel faster and process information more quickly, thus being the reason he was such a paragon of intellectuals.
For the record, the example dog (Winona, by the looks of it) is about 1/3 the size of a pony, and the huge part of the brain in the front is mostly dedicated to smell, iirc.
Edited
Derpy’sMuffin’s brain as an example diagram…