But birds can quickly move their heads and necks around to expand their perspective. Unlike a human, a bird cannot move its eyes in their sockets. An object or view that we humans have to regard at length, a bird can see as a whole, in one quick glance.Įyes are crucial for the predator owl, which can see ten times more powerfully than humans at night. Birds, therefore, have been blessed by God with a superior sense of sight, in addition to the ability to fly.Ī bird's sense of sight has a wider perspective and can operate much more quickly than a human's can. This is proof that these co-dependent organisms were created by the same Creator.īirds For a flying creature, the most important sense is sight, because the miracle of flight would become a very dangerous affair without theĪbility to see. Both species would swiftly go extinct, because the bee would not be able to feed, nor the flower to reproduce. Imagine a situation wherein flowers continued to reflect in the ultraviolet range, but bees were unable to see that portion of the spectrum. Both partners possess the necessary features to enable this collaboration. Therefore, the flower uses its petals to attract the bee and sticks pollen onto the bee's legs as it feeds. The plants, on the other hand, need the bees to spread their pollen among other flowers of the same species in order to reproduce. This pattern guides the bee to where it can collect the nectar or pollen.īees feed on the pollen produced by plants. To our eyes, the coneflower appears to be a uniformly yellowish orange, but to a bee or butterfly, it appears as a corona of yellow with a glowing ultraviolet bull's eye in its center. It is as if their food sources were lit up and signposted especially for them. Called nectar guides, these patterns are like the landing strips of an airport, directing the insects to the nectar within the flower. In some flowers, the pigments form distinct patterns that are invisible to us, but visible to bees and butterflies, who can see ultraviolet light. Ultraviolet Vision Butterflies and bees both possess a special sense of sight, allowing them to reach sources of food with ease. Nor are there any blind insects flying around! This is solid evidence that the fly was created by God in its current state, as mentioned in the Qur'an: It is not possible for a fly to exist, for example, without a digestive or respiratory system. Only with all its systems intact can the fly thrive. Of course, the fly is not composed of merely its visual system-it also has special digestive, reproductive and flight systems. At left, a detailed diagram of an ommatidium, of which the fly's eye contains some 4,000.Ī tiny fly did not evolve or mutate its 4,000 eyes over a period a time. Thanks to the flawless design of its eyes, the housefly can look 360 degrees around. Most people think of the fly as one of the most basic forms of life, but its visual system is in fact one of the most complicated we know. The total number of light-sensitive cells means that 48,000 signals are sent here every hundredth of a second. Two-thirds of the fly's brain is devoted purely to sight. In this regard, their vision is ten times superior to the human eye. House flies have a combined total of 48,000 light-sensitive cells, allowing them to see 100 images per second. Since each ommatidium faces a different direction, the fly is able to see to the front, back, left, right, top and bottom, giving it a 360 degree perspective of the world.Įach ommatidium is sensitive to light shining in its direction, and uses its own lens and eight sensitive cells to process it. 35Ī Visual Range of 360 DegreesThe housefly's eye contains 4,000 small, simple ommatidia which can be moved at will. The higher the number of ommatidia, the keener the vision becomes, with each unit contributing a different part of the complete picture. The information from each ommatidium is then combined, like pieces of a mosaic, to form a single image of the outside world. The compound eye works by each of the eye's six-sided compartments (called ommatidia) detecting a tiny portion of the visual field. The lens in an insect's eye cannot change shape, however, and so insects cannot focus. Each 'piece' is actually a small eye because it contains light sensitivecells, a lens, and connections to the brain.Īs mentioned before, a human eye's lens can change shape, letting us focus on objects at various distances. Compound eyes, on the other hand, are larger and more complex, made up of hundreds of small pieces. Simple-structured eyes are round and small, capable only of separating light and dark. Their structures come in one of two types, simple or complex. Insect EyesCompared to human eyes, the eyes of insects are considerably differen t.

Insect eye xsection