Like many colour-blind mammals, the zebra cannot see the colour orange as well as quite a few other colours. Here is the explanation why.
Vertebrates can see because of specialized light receptor structures in the retina at the back of the eye, known as cones and rods. Functioning only in bright light, cones provide the sharpest images and are responsible for the ability to see colour, whereas rods are very sensitive to even dim light, but help us see relatively coarse, colourless images.
Different types of cones are tuned to different colours of light - the narrow visible range of the electromagnetic spectrum. Opsins are light sensitive protein pigments near the surfaces of the cones and the Opsins in the different cones are sensitive to different wavelengths of light. Some mammals like humans, apes etc. have three different kinds of Opsins on their cones, which help differentiate between blues, greens and reds - hence they are called ‘Trichromatic’ and are able to perceive any color they see as a mixture of these three basic colours. However, most mammals, including the zebra, have only two kinds of Opsins, and hence they have a mechanism based on only two primary colours instead of three. This limited colour vision capability is called ‘Dichromacy’, and this is why the zebras cannot see some of the colours like orange.
I have looked at many websites and they said true. It is true because though they can see colours but they cannot distinguish between colours. Why you may ask? Because they don't have the right cell formulations in there eye. Some people are colour blind.
I have researched the answer to your 'True or False?' question and I have found out that zebras cannot see the colour orange because, like many other mammals, they are colour blind. They cannot distinguish between certain colours, which in this case, they cannot tell the difference between orange and another certain colour. This why zebras cannot see the they colour orange.
I have looked it up of lots of web sites and they all said that it was true they cannot see the colour Orange! yes this all true they can all see colour but on the other hand they cannot tell the difference between all colours.
The answer to the question asked is TRUE; zebra’s can’t see the colour orange.
First of all, how can you see colour?
The cone cells in the human eye make us see colours. There are 3 cone cells - S cell, M cell and L cell - based on wavelength*. For example, if someone has only one cone cell, he/she can only see black and white. This means that he/she is Monochromatic (or) in other words colour blind.
If they had two cone cells, they can’t see red - green colours, which means that they are Dichromatic.
If they had three cone cells, they would basically be quite normal as most humans with sight, to approximately 1 million colours.
Anyway a zebra is Dichromatic because it only has 2 cone cells and that limits The zebra from seeing orange colour.
*Wavelength - light particles called photons travels in waves and the wavelength is calculated between two peaks, which are next to each other. Red has a longer wavelength than Purple.
Like many colour-blind mammals, the zebra cannot see the colour orange as well as quite a few other colours. Here is the explanation why.
ReplyDeleteVertebrates can see because of specialized light receptor structures in the retina at the back of the eye, known as cones and rods. Functioning only in bright light, cones provide the sharpest images and are responsible for the ability to see colour, whereas rods are very sensitive to even dim light, but help us see relatively coarse, colourless images.
Different types of cones are tuned to different colours of light - the narrow visible range of the electromagnetic spectrum. Opsins are light sensitive protein pigments near the surfaces of the cones and the Opsins in the different cones are sensitive to different wavelengths of light. Some mammals like humans, apes etc. have three different kinds of Opsins on their cones, which help differentiate between blues, greens and reds - hence they are called ‘Trichromatic’ and are able to perceive any color they see as a mixture of these three basic colours. However, most mammals, including the zebra, have only two kinds of Opsins, and hence they have a mechanism based on only two primary colours instead of three. This limited colour vision capability is called ‘Dichromacy’, and this is why the zebras cannot see some of the colours like orange.
Can zebras see not orange?
ReplyDeleteI have looked at many websites and they said true.
It is true because though they can see colours but they cannot distinguish between colours.
Why you may ask? Because they don't have the right cell formulations in there eye.
Some people are colour blind.
Can zebras see the colour orange?
ReplyDeleteI have researched the answer to your 'True or False?' question and I have found out that zebras cannot see the colour orange because, like many other mammals, they are colour blind. They cannot distinguish between certain colours, which in this case, they cannot tell the difference between orange and another certain colour. This why zebras cannot see the they colour orange.
By Prisha
Can Zebras see the colour Orange?
ReplyDeleteI have looked it up of lots of web sites and they all said that it was true they cannot see the colour Orange! yes this all true they can all see colour but on the other hand they cannot tell the difference between all colours.
The answer to the question asked is TRUE; zebra’s can’t see the colour orange.
ReplyDeleteFirst of all, how can you see colour?
The cone cells in the human eye make us see colours. There are 3 cone cells - S cell, M cell and L cell - based on wavelength*. For example, if someone has only one cone cell, he/she can only see black and white. This means that he/she is Monochromatic (or) in other words colour blind.
If they had two cone cells, they can’t see red - green colours, which means that they are Dichromatic.
If they had three cone cells, they would basically be quite normal as most humans with sight, to approximately 1 million colours.
Anyway a zebra is Dichromatic because it only has 2 cone cells and that limits
The zebra from seeing orange colour.
*Wavelength - light particles called photons travels in waves and the wavelength is calculated between two peaks, which are next to each other. Red has a longer wavelength than Purple.