Every living being on our planet sees the world in a different way, while some see in black and white others can see colors that the human eye has never seen, here you can see some information on how dogs, cats, Birds, fish and flies.
DOGS:
There is a myth that dogs see black and white, this is false, dogs are partially daltonic because they can not perceive the colors red, orange or green, their vision consists of gray, yellow and celestial tones.
Their eyesight is very sensitive to movement and have a greater viewing angle than the human, while humans have a field of view of 180 ° they can see in a field of vision of 240 °
THE CATS:
The view of cats is similar to that of dogs since they perceive almost the same colors they only see in greenish, blue and yellow tones, not seeing so many colors helps them to stay focused more on the movement without nothing distracting them.
Their vision is not very good during the day because they absorb up to 8 times more light than the human eye, which makes them have better vision at night, which is why they are more active at night.
THE BIRDS:
Birds have adaptations that allow them to see better than most animals, have 4 color receptors while humans only have 3, this allows them to see colors that the human eye has never seen.
They can see the ultraviolet light that allows them to see the urine left by their prey and to observe spots and colors in the plumage of other birds which are invisible to us.
FISH:
The vision of fish is very similar to that of humans but with a spherical lens, something like the lens of a camera, as they have eyes on the sides of their head have an extremely wide field of vision, allowing them to see absolutely Everything around them, both what they have in front and what they have behind.
Like cats also possess a very good vision at night.
It is not the vision of a fish but it is something like this:
THE FLIES:
Earlier it was said that because of the split in their eyes the flies could see a repeated image on many planes (like a mosaic image) this is something that was recently discarded.
What most characterizes the vision of the flies is the reaction time, have you tried to kill a fly? Is very difficult, what happens with this is that the flies perceive the time in a different way, which for you is 1 second trying to kill her in the eyes of the fly is seen in slow comrade, which gives the time Enough to react.
PS: I did not get pictures of the vision of the flies :(
SOURCE: XpressTV