· Why are their form of seeing and sensing the world different from
human beings?
The features of creation in cats' eyes are one of the evidences of the
perfection in Almighty Allah's creation. Our Lord created cats' eyes
with thecontrol and coordination features compatible with the needs of
these beings. In one verse, the perfection in Allah's creation is told
as such:
"He is Allah – the Creator, the Maker, the Giver of Form. To Him
belong the Most Beautiful Names.Everything in the heavens and earth
glorifies Him.He is the Almighty, the All-Wise."(Surat al-Hashr,24)
Cats' Night Vision Is Very Strong
Cats can easily distinguish colors like green, blue and red. However,
the actual superiority of their eyes is that they are created for
night vision. Cats' eyelids open up at nights; so in environments of
low light,the colored layer of the eye called the iris makes the pupil
larger (covering more than almost 90% of the eye) and allows more
light to come in. In environments with high levels of light, this
system works in the opposite wayto protect the retina, the pupil
narrows and turns into a thin line.
There is a layer that does not exist in humans. This layer just behind
the retiana reflects the light. Since the light that falls onthis
layer is reflected back, light passes two times through the retina.
Therefore, cats can easily see in low light, and even in dark
environments the human eye cannot see in. The reason that cats' eyes
shine under light in the dark is this layer. This layer is made up of
tapetum lucidum crystals that reflect light. Thanks to these crystals,
the light that falls on the back of the eye is reflected back tothe
retina. Some of the reflected light turns back from the lens, and
causes the eyes to shine at night. Thanks to this structure, the
amount of light the eye can see in the dark is increased, and more
precisely, available light is better used. Therefore, cats have
better vision in the dark. This is not a formof bio-luminescence,
because the light is not produced by the animal, but is a result of
light being reflected back.
Another reason that cats can see well in the dark is that there are
more rod cells than cone cells in their retinas. As it is known, rod
cells are sensitive to light only. They form a black or whiteimage
depending on the light that comes from objects, but they are sensitive
enough to work even with little light.
Thanks to these special rod cells, all cats can easilyhunt at night.
As it is seen, Allah created the most appropriate eye structure for
their living conditions and nutritional needs. Cats' eyes have
markedly different structures and characteristics in line with their
own needs. This is one of the unique examples of Allah's art of
creation. Our Lord's uniquescience of creation is revealed in one
verse as such:
" The Originator of the heavens and earth. When He decides on
something, He just says to it, 'Be!' and it is. (Suratal-Baqara, 117)
Cats' Visual Field Is Very Wide
In addition to cats' perfect vision at night, their visual field is
also much wider than that of humans. Whereas mans' visual field is
limited to 160 degrees, cats can easily see up to 187 degrees. With
these characteristics, they can easily detect threats. This
characteristic of the eye is another example of Allah's art and
manifestation on beings indifferent ways. As it is toldin the Qur'an,
these creation characteristics area form of example (lesson)for
believers:
"There is instruction for you in cattle... " (Surat an-Nahl, 66)
Cats' Eye Structure Is Different Than Men
In cats' eyes, there is a third eyelid called the " nictitating
membrane." This membrane is transparent, and moves from one side of
the eye to the other. As such, cats can blink their eyes without
completely closing them. This third eyelid prevents the cat's eye from
being harmed while hunting. Moreover, it ensures materials such as
dust and such keep away from the surface of the eye and that the eye
stays moist; this is becausecats do not constantly blink their eyes
like humans. If cats blinked their eyes all the time to keep their
eyes moist like humans, this would cause a great hardship for them
while hunting. Not blinking their eyes is a perfect advantage Allah
created for these beings.
Cats' Eyes Are Sensitive To Movements
Cats cannot see close-range as clearly as people do and cannot focus
on objects close to them. But our Lord granted sensory hairs with a
very strong sensory mechanism to these beings. Cats can easily detect
close-range thanks to their sense of smell and sensory hairs.
--
:-> :->
No comments:
Post a Comment