Are flies color blind and are flies color blind? As the title suggests, thank you

Fly. The eyes are compound eyes, compound eyes that are made up of many small individual eyes, and each of them has its own independent light sensing system, but it doesn't really see a lot of images, and instead they have very limited vision. But their eyes react quickly when they see each individual image, and their compound eyes are able to see very small things, such as:

Fluorescent lamp. The flickering lights and the scan lines of the TV screen that we only see when we take a video of the TV screen The most important thing is that they can detect the approach of danger and be able to run away immediately. For example, the attack of a fly swatter Flies don't have the same concept of time as we are, so they see things differently, and they spend one-tenth of our time, which means that one second of ours is equivalent to 10 seconds of a fly. Their reflection is also ten times faster than ours The eyes of the flies can fix the film We watch movies are coherent images are very smooth, what they see is a frame of time The sense of the extension of time is just in line with the high-speed life of flies Because fast vision and reflection are very important for flies, a weak insect.

It's because it's so small, and seeing a lot of things is like looking at a small enlarged mosaic, color doesn't mean much to it, and the principle of evolution is that if you don't use it, you retreat, and if you don't use it, you will have a weak sense of color.

yes, because it's too small, looking at a lot of things is like we look at a small picture enlarged mosaic, color has no meaning to it, the principle of evolution is that if you don't use it, you will retreat, and if it is often not used, the sense of color will be weak.

Because it is too small, looking at many things is like we looking at a small picture enlarged mosaic, color has no meaning to it, the principle of evolution is that if you don't use it, you will retreat, and if it is often not used, the sense of color will be weak.

Blue and black are more attractive to flies, and flies and mosquitoes can also see the color. Houseflies hate blue the most, so they are reluctant to approach blue doors, windows, and curtains. Mosquitoes can distinguish yellow, blue, and black, and have a preference for black.

Flies are colorblind and can only see black and white! Come on! Such questions are asked.

I don't like white, I like red, yellow, and blue.

The normal human eye can perceive the colors of the world, recognizing red, orange, yellow, green, cyan, blue, and purple, plus various transition colors between them, there are about 60 kinds in total. So, what about the ability of animals to sense color? Scientists have studied this.

Studies have confirmed that most mammals are color blind. Cows, sheep, horses, dogs, cats, etc., can hardly distinguish colors, reflected in the color of their eyes, only black, white, gray 3 colors, dogs can not distinguish colors, it looks at the scenery like looking at a black and white**. In addition to their legs, dogs mainly rely on their sense of smell and hearing to hunt their prey.

Our human "close relative" apes live a prosaic gray life. Voles, house mice, yellow squirrels, chipmunks, squirrels, prairie dogs, etc., also cannot distinguish colors. Giraffes can distinguish yellow, green, and orange.

Deer have the strongest recognition of gray. Interestingly, although the zebra is colorblind, it is able to use color to protect itself. Zebras and other animals graze together, and the black and white stripes can attract attention, so when danger arises, all zebras will quickly flee as soon as the lead horse moves.

When the zebra runs, the shaking of the black and white stripes makes it difficult for the predator to quickly determine the distance, and the zebra can escape safely.

This is not the case with birds. With the exception of some birds that are accustomed to nightlife, such as owls, which cannot recognize colors because there are no cone cells in the retina, many birds have a sense of color. Crows fly at high altitudes and need to find a place to land, and the color will help them judge the distance and shape, so they can catch the insects flying in the air and land lightly on the branches.

The birds' ability to discriminate colors is also beneficial in their search for mates. Think about it, male birds often use bright feathers to attract the opposite sex, if they can't feel the color, then what is the charm of male birds?

Most aquatic animals have the ability to distinguish colors. The sea bass can sense color, and the biologists feed them with red larvae, and when they get used to it, they switch to red wool to feed them, and the sea bass actually eats it.

Although insects are lower animals, they are more intelligent than mammals in their ability to distinguish colors. Dragonflies have the best visual appearance against color, followed by butterflies and moths. Flies and mosquitoes can also see the color.

Houseflies hate blue the most, so they are reluctant to approach blue doors, windows, and curtains. Mosquitoes can distinguish yellow, blue, and black, and have a preference for black. Industrious little bees live among thousands of purple and red flowers, but they are red blind, and bees can distinguish three colors: green, yellow, and blue.

However, bees can see ultraviolet rays that are invisible to humans, and can accurately distinguish ultraviolet rays from various shades of white and gray.

Among vertebrates, only mammals are red-green color blind. (Color blindness is relative to humans.) Humans have three types of vertebral cells: red, green, and blue).

Fish, amphibians, reptiles, and birds are all four types of vertebral cells, red, green, blue, and ultraviolet.

Mammals have two types of vertebral cells, yellow and blue, and only primates have changed back to three, red, green, and blue, but still can't see ultraviolet rays.

Of course there are some special, nocturnal animals that have no vertebral cells and are completely color blind. Because the light is too dark at night, there is no need to distinguish the colors.

As for invertebrates, it's complicated. Some can have 12 color receptors, such as shrimp crickets, which can distinguish 12 species, and the world is dazzling in the eyes of this animal. Some are just one of them, and you can only see yellow.

Animals that are strictly nocturnal are colorblind because color has no meaning for nocturnal animals. So owls, bats, wolves, foxes, mice, and nocturnal snakes are all born with color blindness.

I remember when I was in school, my teacher told me that we should be dogs, yes.