The human eye is an impressive organ. Those who oppose the idea of evolution have even said that the eye is too complex an organ to have had developed as a result of evolution. But is that how it really is? Human eyesight is impressive, but there are animals in the world with even better eyesight.
National Geographic has compiled a list of animals that can see farther, clearer and faster than us:
Sharpest eyesight – birds of prey
Eagles, hawks and buzzards have eyesight that is 3-4 times sharper than ours. Eagles can spot rabbits from a distance of several kilometres. Hawks and buzzards survey the ground from up to 15 km altitude, looking for prey. Once the prey is spotted, these birds are able to charge at the speed of more than 100 m/sec without losing focus on the target.
Best eyesight at night – owls
Owls’ eyes are just as big as our eyes. Their enormous pupils can perceive a lot of light. Owls can spot a mouse on a football field even is the only source of light is a single candle. But because owls eyes are so big and are always turned to the front, these birds cannot move them. To compensate for this limitation, these birds are able to turn their heads 270 around.
Best underwater eyesight – sharks
Sharks can spot light that is ten times dimmer than what we can see. On top of that, sharks have special cells in their brains that sense electrical fields. It not only allows them to find their way in water without a compass, but also allows them to sense weak electrical fields created by even the slightest muscle movements of their prey.
Best ‘thermal’ sight – snakes
Organs sensitive to thermal changes, located in the section between eyes and nose, allows pythons, boa constrictors and vipers to sense the warms coming from their prey. All snakes have this organ. Because of it, these reptiles can kill their pry with deadly precision even when it is completely dark.
Best eyesight at night among mammals – cats
Cats have incredible eyesight at night. This is because the pupils of their eyes can expand to a large size, greatly enhancing their ability to hunt in the dark. This is very bad news if you are a mouse!
Best motion detection – insects
While humans have only one lens in each eye, insects can have hundreds. Eyes with a structure like that are called complex eyes. Instead of seeing a single clear picture, eyes of insects show a tiny fraction of the whole picture. Although our eyesight is much better than most insects, their eyes are much better at detecting motion.
Herbivore mammals can see almost everything around them.
Mammals, especially horses, gazelles and zebras have to be on alert all the time to avoid being eaten. If these mammals had their eyes located facing the front of their heads, like we do, they would be preyed upon without end. However, the eyes of herbivores are located on the sides of their heads let them see what goes on around them.