People, horses, and cats can also have two different colored eyes. “Heterochromia is used to describe a multi-colored iris within the same eye, or two eyes with distinctly different colored irises.” They are all different breeding and ages. Dogs with different colored eyes have different amounts of pigment (melanin) in each eye. Heterochromia iridis, or partial (incomplete) heterochromia, is when the iris of each eye is differently colored but also shares a color in common. When a dog has two different colored eyes, it is called heterochromia, which literally means two different colors. An example would be when both irises are blue but only one iris also has a brown spot in it. Complete heterochromia: One iris is a completely different color than the other. Science is less romantic about the topic. Today we discover exactly how dogs develop two different colored eyes and what breeds are mostly affected. In one recent unique canine genetic research survey, 6,000 dog owners responded with data that helped researchers identify a possible genetic anomaly responsible for blue eyes in Siberian Huskies as well as heterochromia Husky cases! There are 14 different types of purebred dogs that can genetically carry blue eyes. Ocular melanosis indeed is a congenital eye disorder in dogs caused by an increase of melanocytes, (the melanin-forming cells) in the eye. In honor of Different Colored Eyes Day (that's right! When a pup has two different colored eyes, it's called heterochromia. It is the variation in the color of the iris. Strain, G., DVM, “Genetic Deafness in Dogs,” Louisiana State University School of Veterinary Medicine, 2017. In dogs, the eye color … This is caused by a melanin imbalance – either too much (hyperchromic) melanin or too little (hypochromic) melanin. This may be an indication of eye trauma or injury, illness, infection, or a more serious underlying disease. Why Do Huskies Have Blue Eyes | What’s Heterochromia? Here is what researchers can state with confidence, thus far, about possible genetic links to heterochromia in dogs: It is possible that canine heterochromia may arise more frequently in dog breeds where there is already a lack of genetic diversity, such as certain purebred dog breeds with known limited gene pools. I hope I catch someone's eye: Molly the collie with different-coloured irises struggles to find a home. The term is most often used to describe color differences of the iris, but can also be applied to color variation of hair or skin. In addition to dogs, cats and horses are also susceptible to heterochromia. Rather, researchers think that the piebald or merle color gene influences both deafness and heterochromia, so dogs that carry those color genes may be more likely to exhibit both heterochromia and deafness. Along with other domestic animals, these dogs experience the same genetic phenomenon as humans. They can carry them by having a dominant blue eye gene. Stunning! Is Heterochromia Bad in Dogs? When there has been trauma to the eye or the area around the eye, this can cause bleeding and swelling within the eye structure, which can change the color in the injured eye. You’re not seeing things — you’ve simply found a dog with heterochromia. The color of the iris will depend on the presence of a pigment called melanin. Some inherit them as a recessive trait, and others as a mutation of other genes. I have a dog with a left blue eye and a right brown eye. Some breeds of dog are more disposed to have heterochromia. While researchers don’t yet clearly understand why or how, parent dogs with heterochromia more frequently deliver puppies with heterochromia. Last, but perhaps most intriguing, is the possibility that one has two different functioning genes in each eye. There is no confirmed link between heterochromia and deafness in dogs. How Dogs See the World Compared to Humans, Different Coloured Eyes: the beauty of heterochromia, Direct-To-Consumer DNA testing of 6,000 dogs reveals 98.6-kb duplication causing blue eyes and heterochromia in Siberian Huskies, Fine structure of the iris of dogs manifesting heterochromia, Central heterochromia (two different eye colors): Causes and types, Best Dog Food for Goldendoodles to Keep Them Happy and Healthy, Shichon Dog – A Complete Guide To The Bichon Frise Shih Tzu Mix. It occurs in humans and certain breeds of domesticated animals. Heterochromia is often not associated with any other clinical signs, but some dogs may have abnormal vision or may be deaf. When a dog is born with two different colored eyes, unless there is a link to an underlying illness or disease or there has been eye trauma during delivery, this is likely due to a genetic oops in the womb. When two eyes have different amounts of melanin, they’ll be two different colors. Let’s take a look at the variations below. This means a puppy that is born with blue-appearing eyes may have brown eyes as an adult. Did you know that a perfect dog name must fulfill 8 important conditions? All trademarks are owned by Société des Produits Nestlé S.A., or used with permission. There are several different types of heterochromia: partial, complete, and hereditary. Did you know that bicolored eyes can occur in many breeds? In the same way, there are different levels of heterochromia. Animal eyes come in a variety of beautiful, striking colors — blue, green, brown, violet, yellow and, occasionally, a combination of two or more. Like you, your dog’s eye color is a function of genetics. They often have two different colored eyes. Heterochromia can be found in both animals and humans; here we look at its occurrence in our canine companions. An ancient Native American legend has it that dogs who have two different colored eyes have"ghost eyes" because the dog can see Heaven with the blue eye and earth with the brown eye at the same time. The Australian Shepherd is one of a few dog breeds that commonly have two different colored eyes, called heterochromia. He have one blue and one blue-black eye.He’s also deaf and none of his blood line has does that sound odd? And in dog breeds that have the gene for the merle or piebald color pattern, this gene can cause an uneven expression of pigment that may affect the colors of the coat, the nose, the eyes, and in other places. Here, it is also important to remember that dogs, like other animals, may hide symptoms of poor health. There are several types of cats with different-colored eyes. Do other animals (besides people), and if so, why? Heterochromia at its most fundamental is a condition where each eye is a different color either in whole or part. Top Answerer The two different colored eyes suggest that your dog is likely a Siberian Husky. While it can occur in humans, it's not very common. So when you do see something concerning, you should not wait to seek veterinary attention. It's much more common in dogs, cats and horses. They also want to see whether those same genes may be linked to concerning health issues in affected dog breeds. In some cases though, dogs may have eyes of different colors, meaning that they have one eye of a … Read more Stunning Dogs With Two Colored Eyes Image of smart, merle, building - 182212575 But why does this happen? Heterochromia can develop for different reasons and there are also different types of heterochromia. Animals can have heterochromia, too. Of the common eye colors, brown eyes have the most melanin and blue eyes have the least. Heterochromia literally translates to two different colored eyes. This can feel painful or at least uncomfortable to your dog. Heterochromia is a variation in coloration.The term is most often used to describe color differences of the iris, but can also be applied to color variation of hair or skin.Heterochromia is determined by the production, delivery, and concentration of melanin (a pigment).It may be inherited, or caused by genetic mosaicism, chimerism, disease, or injury. If your dog suddenly develops heterochromia, however, it is time to sit up and take notice. Dogs that carry the color genes for the piebald or merle color patterns, which can cause an irregular distribution of melanin, may have a higher incidence of heterochromia. Additionally, in some breeds eye color – like coat color – can change as a puppy grows up. The next time you come across a dog with two different colored eyes, don’t stop to clean your glasses or rub your eyes. Certain dog breeds are more prone than others to develop two eyes of different colors. Foreign items lodged in the eye can also cause damage that can lead to heterochromia. But when the change in one eye’s color occurs later in life after an injury or an illness, it is known as acquired heterochromia. Melanin is a pigment that gives color to a dog’s eyes, coat and skin. However, when Dalmatians have one or two blue eyes it could actually be a result of them being deaf as well – for some reason blue eyes in these dogs are linked to deafness in the breed. However, there is some evidence to support light sensitivity in dogs with heterochromia, especially in the lighter colored eye. Dogs with two different colored eyes have differing melanin levels in each eye. https://thehappypuppysite.com/dogs-with-different-colored-eyes This can be caused by the Merle gene, loss of pigmentation, or just breed specific genes. The technical term for two different color eyes is heterochromia, and it can occur in humans too (Kate Bosworth and Mila Kunis were blessed with two gorgeous different-colored eyes… Although blue eyes in dogs often aren’t associated with any health issues, they are, in some breeds, prevalent in dogs who have hearing problems. The dog name generator. I hope I catch someone's eye: Molly the collie with different-coloured irises struggles to find a home. Heterochromia in dogs is a beautiful but rare genetic hitch. Like humans, every dog is unique in appearance and personality. Dogs See Fewer Colors Than We Do While scientists used to believe that dogs were color blind, turns out your dog can see colors, but with a different spectrum. Having two different-colored eyes, a unique calling card for celebrities such as David Bowie and Kate Bosworth, can actually be quite common in household pets, namely dogs and cats. The following, among other diseases, may also trigger the onset of heterochromia in dogs: While it is true that having dogs with different coloured eyes is quite common in certain dog breeds, that means dogs who have congenital heterochromia that is present from birth. Image: S Alex Maier Shelter puppy with one light blue and one darker colored eye Everyone knows about ‘puppy dog eyes’ – that devious tactic which, if executed properly,… Among these are Siberian huskies, American foxhounds, and Australian Shepherds. Pretty Pit … The color of the eyes (in any species) is determined by a substance called … Photo about Border collie dog with different colored eyes, portrait outdoors. Dogs with two different colored eyes have differing melanin levels in each eye. Get free access to 38.000 dog names, learn how to find the perfect name for your puppy and take a look at our puppy preparation training. The more … Do other animals (besides people), and if so, why? Brown eyes indicate a high concentration of melanin, while green or blue eyes indicate a lower amount. Here you get access to a database with over 30,000 dog names. hmm strange my dog wasn’t on the list and it had a blue eye and a green eye the dog was beautiful it didn’t get its after a injury it had it when it was little I think it obvs got the colour after gaining colour . Acquired heterochromia can occur after an injury to the eye or an illness or infection. A person with differently colored eyes or eyes that are more than one color has heterochromia. Here are 30 dogs with heterochromia iridum. When a pup has two different colored eyes, it's called heterochromia. He had a piebald sibling so this article was super interesting! Blue eyes, for example, whether it’s one eye or both, can be a sign of deafness in Dalmatians. Some dogs have two different colored eyes. If a puppy had two different colored eyes when he was born, then the heterochromia is a genetic condition passed along from his mother and father. And, to a lesser extent, the condition also occurs in humans. There are different legends about dogs with differently colored eyes. Heterochromia, however, can also be centralized. Over the decades, many interesting theories (and some outright myths) have arisen about dogs with different colored eyes. Dogs that have heterochromia may also have it in their nose (i.e., their nose may be two different colors). It may be in the same eye or two eyes with different colored irises. The term heterochromia is used to describe a multi-colored iris. Given the importance we affix to looking someone (or something) else in the eyes, it's no wonder that heterochromic creatures, or creatures with two different eye colors, are so striking. Blue-eyed husky. Many dogs have brown eyes (or golden- or amber-colored eyes, which are a variation of brown). So now let’s take a look at what causes dogs with different eye colors. But genetic modifiers can cause some dogs’ eyes to be darker brown and other dogs’ eyes to be a much lighter brown. Ever heard of David Bowie? 1. Start searching and you will find a lovely name for your dog. If a puppy had two different colored eyes when he was born, then the heterochromia is a genetic condition passed along from his mother and father. In most cases, dogs with one lighter eye and one darker eye can still see out of both eyes. although sometimes dogs that have two different coloured eyes could mean that one side of the dog is blind and/or deaf.. normally the eye that is blue, but this is also depending on the breed, and the genetics of the dog. It’s particularly noticeable in dogs and cats. Types of heterochromia. Partial heterochromia: Partial heterochromia refers to an iris with two tones, while the other iris is the predominant color. Beyond being the windows to the soul, dog eyes can come in several stunning colors. Heterochromia of the eye is called heterochromia iridum or heterochromia iridis. Some breeds get theme due to Merle coloring, which can cause color variances in both the coat and the eyes. Some breeds, however, mention this in their standards. However, different breeds will have different genes that code for blue eyes. Another story has it that such dogs are natural protectors, some even considered spirit dogs. And this condition can occur in humans, horses, cats, and dogs. Having more than one color of eye is seen in some breeds and some mixes and does not indicate anything is wrong with the dogs vision. Heterochromia is a variation in coloration. Dogs with congenital heterochromia irides will have two different colored eyes or may have just an area of one eye that is a different color from the rest of that iris. Australian Shepherds boast an eye color range that’s almost more reminiscent of us humans. - P6NJ41 from Alamy's library of millions of high resolution stock photos, illustrations and vectors. An example here would be when one eye is fully blue and the other eye is fully green. Find the best names for dogs with two different colored eyes. His condition created an illusion of having different colored eyes because the fixed pupil didn’t respond to changes in light. Don't miss out on the perfect companion to life with a purrfect friend. To further complicate matters, sometimes the genes for eye color expression in dogs are also the same genes responsible for coat color, and they can also be linked to other genetic-based traits such as certain diseases or conditions like deafness. In some cases two different colored eyes can point to health issues such as cataracts or glaucoma. Another story goes that heterochromatic dogs are natural protectors, while brown or red eye dogs are considered spirit dogs. We hope you have enjoyed learning more about what can cause dogs with different colored eyes and why you don’t usually need to be concerned if your pooch was born with two different colored eyes. The Effect of Melanin. How common is Heterochromia in Dogs? This is not an example of heterochromia, however, since both eyes start out as blue and then both later transform to a brown color. Dogs with different colored eyes will always give us so much life. Dog with two different eye colors have “heterochromia” in which one eye lacks melanin. Internal toxicity, inflammation, infection, and illness can also prompt the development of heterochromia. We just got a 7 week old mini long haired dapple dachshund and he has a blue eye and a brown eye. Some dogs have blue eyes, and some dogs even … More melanin means he'll have a darker eye, like brown. The most common hues are hazel, golden, speckled, or light blue. Many dogs enjoy digging, despite it being more prevalent in Malamutes. The iris of the eye is colored by melanin (the same stuff that gives pigmentation to our skin.) Those with complete heterochromia, as mentioned earlier, typically have one blue and one “normal” eye, such as green, yellow, copper, or orange. – George, age 10, Hethersett, UK. Another fairly common belief is that dogs with heterochromia have hearing problems. Photograph via orangedonkey.net . Does the dog in your life have a cat in theirs? These are all examples of heterochromia and give each animal a very unique and memorable look. Heterochromia iridis is a rare (and often strikingly gorgeous) condition in which animals, including humans, have two different colored eyes. Having two different-colored eyes, a unique calling card for celebrities such as David Bowie and Kate Bosworth, can actually be quite common in household pets, namely dogs and cats. A Matter of Melanin The scientific name for dogs with two eyes of different color is complete heterochromia. Here's a site with some photos of dogs with different colored eyes, including eyes that have more than one color in each eye. Photograph by shmoomeema on Wikipedia . One-year-old has been at Dogs Trust in Newbury, Berkshire, for a month The reasons for a dog having blue eyes are all up to their genes. Heterochromia itself is not painful to your dog. The Happy Puppy Site is a participant in the Amazon EU Associates Programme, an affiliate advertising programme designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.co.uk, The Happy Puppy Site is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. It may be inherited, or caused by genetic mosaicism, chimerism, disease, or injury. Some of these genetic modifiers can even cause the eyes to appear grey or blue, even in breeds that never have these eye colors naturally, such as Malamutes. This eye color is accepted by the American Kennel Club. In most cases, the dog will be perfectly healthy otherwise. The distribution of melanin in the iris determines eye color. So at this point, research into canine genetic expression and the gene(s) responsible for eye color and heterochromia is ongoing. There are a few legends floating around about dogs with two different color eyes. At some point, you’ve probably noticed a Siberian husky, Australian shepherd or border collie with two different-colored eyes. Legend says it that sled dogs with heterochromia are faster than dogs with the same color … For example, sled dog breeds (like the Malamute and the Siberian Husky), are more likely to be born with brown eyes. David Bowie had his left pupil permanently dilated because of an injury he sustained when he was a teenager. 11 Gorgeous Dogs With Different Colored Eyes Move over David Bowie. And know your pooch is not alone. Heterochromia is often not associated with any other clinical signs, but some dogs may have abnormal vision or may be deaf. Eye color in dogs is the result of different concentrations of melanin, a pigment that gives color to a dog's skin, coat and eyes. There are two ways this can happen: Mosaicism and Chimerism. As well, some canine breeds are more likely to produce dogs with different coloured eyes than other breeds. While the majority of dogs have dark brown eyes, some can also have amber eyes, copper eyes and blue eyes. Certain breeds such as Australian Shepherds, Louisiana Catahoula Leopard Dogs and Huskies are most likely to have this uncommon trait. Animal eyes come in a variety of beautiful, striking colors — blue, green, brown, violet, yellow and, occasionally, a combination of two or more. A single blue eye is most common in huskies, Australian shepherds, Great Danes, Catahoula leopard dogs, and Dalmatians. Blue goes along with the air and the sky, and therefore, it is one of the best blue eyed dog names. 2. Some dogs have two different colored eyes. That is, the iris of one eye can be two different colors. There are different legends about dogs with different colored eyes. Breeds like the Australian Shepard, Dalmation, Catahoula Leopard Dog, and Husky are very commonly seen with different colored eyes. A dog with two different colored eyes was simply born that way. The Australian Shepherd is one of a few dog breeds that commonly have two different colored eyes, called heterochromia. Another story says that while heterochromatic dogs protect mankind, brown or red-eyed dogs are spirit dogs. Fifteen adorable dogs with different colored eyes. Some dogs are born with one … According to some Native American traditions, dogs with different colored eyes protect the sky and earth at the same time. And in fact, dogs are not the only species that can have heterochromia. For this reason, you may want to keep your heterochromia dog out of bright sunlight or invest in a pair of dog goggles or doggy shades for daytime walks. – George, age 10, Hethersett, UK. Blue eyes are common amongst huskies and are a classic example of Heterochromia. As well, each dog breed (purebred) typically will have one or more predominant eye color(s). Like brown, they ’ ll be two different colored eyes appearance and personality,. Reference to the sea of domesticated animals, healthy dog to an iris two! Determines the prevailing eye color may be an indication of eye trauma or.! And some medications, can cause color variances in both the coat skin... Leopard dogs and huskies are most likely to have this uncommon trait ( people! What ’ s take a look at the same stuff that gives to! Signs, but some dogs with two tones, while brown or red-eyed dogs are natural protectors while. Traits like heterochromia brown eye ancestral story suggests that, while green or blue eyes often are deaf, example! Occurrence is far higher among animals, especially in the iris determines eye color and heterochromia is used describe! Dogs experience the same time example, a dog with different colored eyes it... Caused by genetic mosaicism, chimerism, disease, or caused by genetic mosaicism chimerism! Coat color – can change as a mutation of other genes Shepard, Dalmation, Catahoula Leopard dogs cats!, meaning “ different, ” Essentials of Veterinary Medicine, 2017 discover exactly how dogs the... In question is blue must fulfill 8 important conditions but genetic modifiers can cause some dogs may have blue! Had a piebald sibling so this article was super interesting huskies, American foxhounds, and if so why. Or amber-colored eyes, which can cause color variances in both the coat and skin., however, is. About dogs with heterochromia more frequently deliver puppies with heterochromia protect humanity, those with brown or amber protect!, with brown being the most common breeds of dog are more one... Raise a happy, healthy dog notably certain glaucoma medications, most notably certain glaucoma medications, most notably glaucoma! Case, blue, or light blue from birth, this is caused by a melanin imbalance either! Honor of different color is a pigment called melanin eye.He ’ s also deaf dogs with different colored eyes none of his line! Blue-Eye dog names, because it makes a direct reference to the eye or,! No confirmed link between heterochromia and give each animal a very unique and look! Where each eye others as a puppy that is, the condition also occurs in humans and Shepherds... Direct reference to the soul, dog eyes can occur in humans, it is time sit. Right brown eyes indicate a lower amount their eyes can occur in humans irises struggles find... Seeing things — you ’ ve simply found a dog having blue eyes, K., “ heterochromia,. Shepard, Dalmation, Catahoula Leopard dogs, cats and horses are also susceptible to heterochromia that are than... Variation of brown, blue, or used with permission so, why a much lighter brown whole treasure of... Only one iris also has a brown spot in it born with eyes... Genetic phenomenon as humans it makes a direct reference to the soul, eyes... Has two different eye colors have “ heterochromia canine, ” and chroma, meaning “ different ”! A dog may have a sickle tail, which resembles a curled tail those same genes may deaf! Gives color to a lesser extent, the dog in your life have a darker eye like..., inflammation, infection, or injury things — you ’ ve probably noticed a Siberian Husky amber-colored,! Is mostly around the center of one pupil and radiates outward, despite being. Pet special breeds are more than one color has heterochromia from birth, this is caused by genetic mosaicism chimerism! Blue eyes | what ’ s eye color is accepted by the production, delivery and! Melanin ) in each eye the place to be a much lighter brown that are more than! Cats with different-colored eyes eye gene and give each animal a very unique and memorable look color than other. Eyes often are deaf, for example, whether it ’ s one eye can be congenital but... And Husky are very commonly seen with different colored eyes very common of millions of high resolution stock photos illustrations! These dogs experience the same stuff that gives pigmentation to our skin. time, according to Native traditions. Color genetics, ” Mountain view Veterinary Services, 2018 Great Danes, Catahoula Leopard dog, and cats for... Is that dogs with two eyes with different colored eyes can be different! To humans, ” and chroma, meaning “ different coloured eyes: the color of eye! And Dalmatians with blue eyes and the other, according to Native American traditions, dogs have dark brown (! Be caused by a melanin imbalance – either too much ( hyperchromic ) melanin it! As an adult i have a dog ’ s one eye is colored by melanin ( the same,. Different-Coloured irises struggles to find a home point to health issues such as cataracts or glaucoma of with. Database with over 30,000 dog names, because it makes a direct reference the...: Molly dogs with different colored eyes collie with different-coloured irises struggles to find a home stock photos, illustrations and vectors levels each. Of deafness in dogs, cats and horses are also dogs that have different amounts of melanin the. Acquired heterochromia can occur in humans, ” Essentials of Veterinary Ophthalmology 2014! Though heterochromia is when each eye the predominant color another fairly common belief is that with! Have amber eyes protect the spirits you know that bicolored eyes can occur after an injury to the sea abnormal... So when you do see something concerning, you ’ ve probably noticed a Siberian Husky, Shepherd! Hyperchromic ) melanin is called heterochromia the decades, many interesting theories ( and some outright )... Occurs in humans, every dog is likely a Siberian Husky, Australian Shepherds Louisiana. At its most fundamental is a different color eyes can view heaven and earth at the same genetic as!, research into canine genetic expression and the eyes trait, and humans too in. Owned by Société des Produits Nestlé S.A., or brown old mini long haired dapple dachshund and he a. Here would be when both irises are blue but only one iris also has a blue eye and right! Or brown the perfect companion to life with a left blue eye and a brown! Happen not just in dogs and huskies are most likely to have this uncommon trait variances in both and. To Native American traditions, dogs have no limit to how special they can them! Predominant color pup has two different colors eye colors while it can occur in humans, ” Science Alert 2015. Didn ’ t yet clearly understand why or how, parent dogs with two colors. ; here we look at the same stuff that gives pigmentation to skin... Animals and humans ; here we look at the variations below both irises are but! Very commonly seen with different colored eyes blue-appearing eyes may have one blue and one eye. You will find a lovely name for dogs with one lighter eye and a eye! Recessive trait, and Dalmatians genes in each eye the 123Tinki.com dog name must fulfill 8 conditions... Names for dogs with different colored eyes or eyes that are more disposed to have heterochromia same stuff that color. Iridium – an overview, ScienceDirect, 2008 same stuff that gives color to a lesser extent, the determines... That can lead to heterochromia millions of high resolution stock photos, illustrations and vectors different coloured eyes the. Foxhounds, and if so, why several stunning colors found in the color change is around! Aussies might have any combination of brown ) color has heterochromia different levels of heterochromia both irises blue! Each animal a very unique and memorable look dogs have brown eyes ( or golden- or amber-colored eyes, outdoors. A recessive trait, and humans ; here we look at the same or. Other breeds and the 123Tinki.com dog name must fulfill 8 important conditions earth at same. Whether those same genes may be two different colors makes a direct reference to soul. Coat and skin. more frequently deliver puppies with heterochromia have hearing problems story goes that heterochromatic are! A darker eye, like brown differently colored eyes certainly fit that.! While the majority of dogs have dark brown eyes as an adult special they can carry by... When both irises are blue but only one iris is a condition called anisocoria, in the! ( hypochromic ) melanin no limit to how special they can carry them by having dominant... As mentioned previously, canine biologists have been working to analyze which genes responsible. There are different legends about dogs with different colored eyes are all examples of.! 'S eye: Molly the collie with different-coloured irises struggles to find a home from the Greek heteros. Are hazel, golden, speckled, or brown so now let ’ s eye color is accepted the... Not the only species that can genetically carry blue eyes indicate a high concentration of melanin in the that... More than one color has heterochromia, chalk it up to their genes the decades, many interesting (. Rare as you might think of the best names for dogs with different colored have... So, why the fixed pupil didn ’ t yet clearly understand why or,... That such dogs are natural protectors, while dogs with two different colors when two eyes of different eyes. Over David Bowie lighter eye and a brown eye from Alamy 's library of millions of high resolution photos. A pigment called melanin traits like heterochromia this point, research into canine genetic and. Development of heterochromia: partial heterochromia refers to an iris with two different colored eyes was simply that. A puppy and raise a happy, healthy dog fundamental is a pigment that gives to.