The pupils of a goat are horizontal and rectangular. According to scientists at the University of California, Berkeley, the shape of goat pupils goes back to where they are in the food chain. Goats are herbivores, and they need to protect themselves when predators come. With the help of their wide sight, which is the wide pupil of the rectangle, they can perceive danger from the surrounding field of vision.
Martin Banks, lead researcher at the University of California Research, said their eyes also have the ability to “rotate their heads to maintain parallelism with the ground.” This means that when goats bend down and graze, their eyes remain flush with the horizon, allowing them to better see the dangers and threats around them.