While other animals have vertical or round pupils, goats have horizontal rectangular pupils.

Do all goats have horizontal pupils?

Some people may even find their gaze outright unsettling. That's because the goats' pupils are horizontal—not circular like ours, or vertical like a cat's. ... This means that when goats bend their head down to graze, their eyes stay level with the horizon, allowing them an even better view of encroaching danger.

Why do some goats have round pupils?

Circular pupils, like our own (or like a big cat's) tend to belong to predators. Side-slanted eyes like a goat's belong to grazing prey. Using computer models, the researchers confirmed that sideways eyes produce a much wider field of vision than eyes like our own.