From slits to rectangles and W-shapes, animal pupils reveal how life adapts. Discover these 10 animals with the most unusual ...

Pupil shapes vary widely across the animal kingdom, from the W-shaped pupils of cuttlefish to the bar-like pupils of goats.

Some creatures with the most unique eyes in the world When we think about how animals experience the world, one of the first ...

Nevertheless he imagined gradation from simple-eyed animals with pigment-coated nerves to ones with eyes of a “high stage of ...

Camels are masters of adaptation. Here’s how these animals evolved to survive the sand and glare while preserving crucial ...