Most Impressive Animal's Eyes Found on Earth

Cat

I'm not boasting. My nocturnal vision is by far more superior to you human. My total vision is at 280 degrees, which is wider than you human who only can reach to a total vision of 220 degrees. Yup..yup.., my total vision is even broader than the dogs lol... I can see well than you at twilight. In bright light, my eyes shrink to a mere slit or narrow to a vertical slit, while in dim light, my eyes open widely to allow a maximum of illumination.

My baby (kitten) goes blind while they were born because they can't open their eyes until they reach an age of seven to ten. Our visions are significantly weaker than human in the first three months. We can't see many colors as humans do, because we can only distinguish different shades of greenish and blue yellow. The colors of red and orange appear white to us.

Watch me! When my pupils dilate, that means I'm angry or I'm sexually aroused; and when I blink my eyes, that means I'm being stroked.

Jumping Spider

Don't humiliate at my small body! Don't you know that I'm a good jumping champion? In fact, I can leap 10 to 40 times of my body length to avoid becoming prey or to pounce on prey.

My eyes may appeal to you as alien's eyes, but I'm actually proud of my excellent vision. Like other spiders, I've eight eyes.

Look closely! I've four eyes on my face with the enormous pair located in the center, which makes you seeing me as an alien. My remaining small eyes are located at the dorsal surface of the cephalothorax. Though my field of vision is narrowed to 2-5 degrees, my principle eyes have pretty high resolution, which is at 11 min. visual angle. Since I've a sharp vision, I can see my prey anywhere from 30 to 40 cm away.

Gecko

I'm a small, big head lizard with BIG eyes. At night, while hunting for prey, the vertically slit pupils of my huge globe-like eyes open widely to allow the maximum amount of light to enter, so that I can see clearly at night. However, during the day, my pupils close to a tiny slit. My eyes are protected by a thin transparent membrane, and to keep it clean and moisten I use my long sticky tongue to lick it.

Chameleon

I've the most striking eyes among the reptiles. You'll observe that my lower and upper eyelids are joined together, leaving one large pinhole for my pupil to see through. I've an ability to roll or rotate each of my eyes to see two different objects from two different directions at the same time. This perfect visual ability gives me a 360 degree field of vision.

Chameleon says, " Don't trick me! When one of my eyes is looking at you, the other eye of mine is looking back, so please don't play dirty trick on me." (quoted from my previous article entitled animal magician)

Dragonfly

I'm an amazing animal and have long been known as "snake doctors". I've a pair of large multifaceted compound eyes which occupy almost all of my head. Each of my compound eyes has up to 30,000 individual lenses called ommatidia (a separate light-sensing organ), and thus giving me a 360 degrees perfect field of vision. 

Iguana

My eyes may make you feeling scary, but do you know that my eyes can detect ultraviolet wavelengths of light that you humans can't detect. This is particularly useful when I'm basking my body, while allowing me to insure sufficient vitamin production in my skin for a proper mineral absorption. My sensitivity to wavelengths helps me to find my favorable "tidbit" (such as flowers and fruits). Furthermore, my excellent vision helps me exploring safely through the maze of branches in the forest canopy or the crowded forests, and I'm capable enough to detect shapes, shadows, color and movements at astonishingly long distances.

Don't disturb me, if you happen to see that I dilate and contract my large pupils in succession, as though an effect of a camera shutter opening and closing, which you human calls "eye flashing". At this moment, I'm feeling agitated or excited. While resting, my eyelids meet halfway up my eyeballs. Again, don't disturb my good deep sleep, when you see my lower eyelids moving up to cover my whole eyes.

You can read more of my works at ScienceQuest.