Introduction

    Go fetch!

    Hey, why are you going the wrong way? That's right, I remember. Dogs don't see in the same way as humans do. So look more carefully into my website for information about how dogs see differently than humans.  

Retina

     Dogs and humans both have retinas in their eyes. The retina has two main parts called the rods and the cones. The rods detect light levels and the cones help to see different colors. 

Cones and Rods

     Nerves in the eye help you see color. Two important parts of the retina are the cones and rods. Cones let you see different colors and rods help you sense light and motion.

     Human eyes have three different types of cones that let you see combinations of the colors red, blue, and green. 

     Dogs only have two types of cones so they can see blue and yellow.

What Colors Do Dogs See     

     Dogs can only see blue and yellow since they only have two types of cones. This is called dichromatic vision. 

     When your dog is playing fetch, it may be hard for your dog to see the ball because it looks the same as the grass. Also, the color that stands out the most to your dog is blue, so many things appear blue.     

Things Humans See Better Than Dogs

     Compared to humans, dogs are more near-sighted. That means they see best what is right in front of them and they don't see things that are farther away. 

     Humans can see all the colors of the rainbow. Also, dogs can't see colors as bright as humans. The reason is because dogs only have two types of cones and humans have three types of cones. 

   Dogs can't see browns and greens. Most humans can see those colors. However, if you are colorblind, then  you may not be able to tell the difference between some colors, especially red and green. This is because colorblind people have genetic differences in the cones of their eyes. 

     Fun fact: Did you know that men are much, much more likely to be colorblind than women? About 1 in 12 men have some form of colorblindness, while only 1 in 200 women are colorblind!

Things Dogs See Better Than Humans

     Dogs can see better than humans in dark conditions. Dogs also can see and sense motion better than humans. Since dogs are predators, these abilities are good for hunting prey like birds.

     Did you know that dogs have more rods than humans in their retinas. That explains why dogs see better in the dark and they can see and sense movement better than humans.

     Dogs also have better peripheral vision than humans. This means they can see things on the side better than humans because a dog's eyes are located more toward the side of their head, but a human's eyes are on the front of their face.   

Dog and Cat Vision

     Both cats and dogs can't see vibrant colors, but humans do see vibrant colors and can see many different shades of red and green that cats and dogs can't see. 

     Dogs are a little better at seeing colors than cats. Cats can see even fewer colors than dogs, and they have more trouble seeing the difference between blue and green and red.    

Conclusion

     Thanks for reading my website. I hope you learned lots of cool facts about how dogs and humans see differently. Humans have the advantage of seeing a whole rainbow of different colors, and seeing the world more brightly. But dogs are better at seeing in the dark and sensing motion.

    Now, go fetch that ball. You are already good at sensing motion, and I will use a blue and yellow ball since those are the colors that you can see best. 

     Good boy!!!