When it comes to the overall structure, it is obvious that the human and sheep brain is almost similar in appearance. One main difference is the size. The sheep brain is going to be smaller as compared to the human brain. Another thing that will be noticed is the difference in the frontal lobe.
The frontal lobe of the sheep is smaller than the rest of the lobes which is different from the overall structure of the human brain. The optic chiasm of the sheep is known to be more pronounced as compared to humans. The eyes of the sheep are known to work more independently as compared to other animals.