Have you ever noticed the different shape of the pupil in the eyes of different animals? Some animals, such as the dog, have circular pupils similar to the human eye. Some animals, including goats, ...

Berkeley -- While the eyes may be a window into one's soul, new research led by scientists at the University of California, Berkeley, suggests that the pupils could also reveal whether one is a hunter ...

A land animals' ecological niche is a strong predictor of pupil shape, a new analysis has found. Species with pupils that are vertical slits are more likely to be ambush predators that are active both ...