#1 Dragonfly (Image 1 of 10)
The dragonfly eyes are simply incredible. The eyes take up most of the space of their head, and allow them to have 360 degree vision. 30,000 visual units incorporate the eyes, each unit with its own lens and light sensitive cells. Their eyesight is impressive, even in low light, which allows them an advantage in watching for predators or hunting at dusk.
Image Source: smithsonianmag.com