Owls' vision is unique. Owls' acute eyesight lets them hunt at night. Owls' eyes feature rods for night vision. Five times as many rods allow them to see better at night.
Eagles have extremely developed vision, like other raptors. This lets them see their prey from above. Eagles have 4 times the vision we do. Small animals can be seen 3 kilometres away.
Mantis shrimp have great eyesight. Their eyes perceive before their brain. This offers them a competitive advantage. Mantis shrimp can see polarised and UV light with 12-16 photoreceptors.
Chameleons can spin their eyes independently. The chameleon can see 360 degrees without rotating its head. Slow-moving chameleons can sneak up on prey. Most predators travel to find prey, thus this protects them.
Their large eyes provide them excellent vision. 360-degree view. So they can outfly predators. Dragonflies may fly in all directions and hover. They can see movement and depth, but not red.
Unique to robins is a region of the brain that stores images of magnetic fields, which aids in the bird's ability to see in the dark. Night-migrating birds are the only birds who possess the cluster N phenotype.
Black around a cheetah's eyes absorbs light to protect its vision. Contrary to many creatures on the list, they have more cones than rods. This helps them see more defined colours and pick prey from grass.
Photoreceptors are found in butterflies. Butterflies can differentiate between different colours thanks to their 15 or so photoreceptors. This aids their ability to consume and avoid being eaten.