do dogs see black and white by Alba

Dogs have a great sense of smell and they are really fast but how do they see? Veterinarians used to think dogs saw black and white but some research shows that they see in colour.

Do dogs see black and white?

Veterinarians used to think that dogs see black and white but they actually see in colours. Even though dogs see in colours they are colour blind, this means that they can't see some colours. Some people may be colour blind and it is hard for them to see what colour it actually is. Dogs eyes are also different because they see blurry. This happens because dogs only have 2 cone cells. A cone cell is something that you have in your eye people normally have three and they have different colours. One is red one is green and one is blue. Colour blind people do not have one of the cone cells so they only have 2 like dogs. Dogs do not have a red cone cell so they only have a yellow and a blue .Because dogs only have 20% of cone photoreceptor cells in their eyes they can't see as well as humans. Did you know men are more likely to have colour blindness than women. Cesar millan a dog expert says “Human color blindness is much more common in men than in women” in a article about dogs eyes.

How are there eyes different than people's eyes?

Dogs eyes look like people's eyes but are they the same? Some people can see like dogs because they are colour blind. People that are not colour blind have three cone cells, one is red one is green and one is blue. Because Colour blind people don't have one of the cone photoreceptor cells they can't see that colour. Dogs do not have a red cone photoreceptor cell so they don't see some colours like red and orange. Even though dogs have less cone photoreceptor cells than people they have more rod cells. A Rod cells is different than a cone cell instead being used to see colours you use them for seeing light. That is why dogs can see more in the dark than us. Dogs also have more field of vision letting them see more around them.

How do dogs see?

Even though we see more colours than dogs, they have more field of vision and they can see more than us in the dark. This happens because dogs have more rod cells than us. Rod cells make dogs be able to see in the night much better than humans. Dogs have more field of vision than people because there eyes are on the sides of their head letting them see more around them. Since their eyes are on the sides of their head dogs have a field vision of 250 degrees, but people have a field vision of 109 degrees. This means that dogs have 60 degrees more vision than humans. If you want to see like dogs you can get an app and see like dogs would see. In the article how do dogs see the world compared to humans it says ” now a small web app, first uncovered by The Next Web, can show you how the world looks through your pooch’s eyes.”

conclusion

Now that you have read this you might be thinking that humans see better than dogs but that is not the truth. Even though we have more cone cells than dogs do and we can see more colours than dogs does not mean they do not see as well as humans. Dogs have more rod cells than people so they can see in the night. Dogs also have more field vision than humans. Who sees better dogs or humans?

Source

https://www.cesarsway.com/dog-care/innocuous-behaviors/through-a-dogs-eyes

http://www.pedigree.com/

https://www.youtube.com/watch?v=fGcM3z86tHg

http://www.businessinsider.com/how-dogs-see-the-world-compared-to-humans-2015-7?IR=T&r=US&IR=T

https://www.youtube.com/watch?v=9lF7F9XYCR

https://www.lovethatpet.com/dogs/questions/how-does-your-dog-see-the-world/

http://www.findretrievers.com/news/wordpress/2011/05/02/the-difference-between-human-and-canine-vision-can-a-dog-truly-see-accurately-at-long-distance/

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