Dogs With Different Colored Eyes – Heterochromia In Dogs

Different Types Of Blue Eye Dogs

There are many types of blue eyed dogs. Some have only one blue eye while some have two blue eyes. There are also other breeds like golden or silver eyed dogs.

Most of these types of dogs do not exist anymore in the wild because they were hunted down and killed long ago by humans. The most common type of blue eyed dog is the Labrador Retriever, which is a breed known for having two different colored eyes (see picture). These dogs are known as Labradors. They have been bred since ancient times for their ability to hunt game with one eye closed and open at the same time. The Labrador Retriever is considered to be a very loyal companion and they are popular among hunters because of this reason.

The second most common type of blue eyed dog is the Golden Retriever, which is another breed known for having two different colored eyes (see picture). These dogs are known for being extremely intelligent and loyal companions. However, there are several breeds that share the same trait as the Golden Retriever but have different colored eyes.

The Dalmatian is a breed known for having two different colored eyes (see picture). Their coats tend to be lighter than those of the Labrador Retriever and they usually have longer legs compared to other Dalmatians. The Doberman Pinscher is another breed known for having two different colored eyes (see picture). They are known for being protective and loyal. While it isn’t exactly clear why the Doberman has two different colored eyes, it is a common trait among pure bred Dobermans. The Weimaraner is also a breed known for having two different colored eyes (see picture). They are known for their speed and endurance while hunting. While they have different colored eyes, they are not blue. They have a tawny, yellow-brown eye color.

The last type of dog that is known for having two different colored eyes is the German Shepherd Dog, which is another breed known for having two different colored eyes (see picture). These dogs are known for being very intelligent and protective of their master. German Shepherds are often used as seeing eye dogs.

The German Shepherd’s trademark is their long, fluffy hair and their intimidating stature. They make excellent guard dogs because of their protective nature.

Other Types Of Blue Eye Dogs

Dogs are not the only animals that can have two different eye colors. There are several other types of animals that can share the same trait. For example, a cat named Frank (see picture) has one green eye and one blue eye.

This is known as Heterochromia Iridis. There are also some humans that have two different colored eyes. It is not certain what causes animals and people to have two different eye colors. Most often the reason for this is unknown. Some believe that it is a hereditary trait caused by several genes but it is also possible that some types of disease cause the eye to change color. It can also occur because of an injury. Many human cases are caused by birth defects including accidents that happened during birth.

There are several types of animals that have eyes that are the same color. This is known as Isabella. Most animals have eyes that come in a variety of colors such as brown and green.

However, some animals have eyes with a single color. Snakes have eyes with a black dot in the middle of their eye (see picture). They cannot see color but they can tell when you are looking at them because of this fact. Fish and birds have eyes that come in a variety of colors. Fish often have eyes that resemble the sea that they live in (see picture). For example, fish that live in deep blue waters tend to have blue eyes. Birds tend to have eyes with shades of green, brown, and red (see picture). Eyes in the sky tend to be blue but there are many different shades of blue for birds that fly in the sky.

Sources & references used in this article:

Direct-to-consumer DNA testing of 6,000 dogs reveals 98.6-kb duplication associated with blue eyes and heterochromia in Siberian Huskies by PE Deane-Coe, ET Chu, A Slavney, AR Boyko… – PLoS …, 2018 – journals.plos.org

Fine structure of the iris of dogs manifesting heterochromia iridis by JN Shively, RD Phemister – American journal of ophthalmology, 1968 – ajo.com

Blue eye color in humans may be caused by a perfectly associated founder mutation in a regulatory element located within the HERC2 gene inhibiting OCA2 … by H Eiberg, J Troelsen, M Nielsen, A Mikkelsen… – Human genetics, 2008 – Springer

Direct-To-Consumer DNA testing of 6,000 dogs reveals 98.6-kb duplication causing blue eyes and heterochromia in Siberian Huskies by PE Deane-Coe, ET Chu, AR Boyko, AJ Sams – BioRxiv, 2018 – biorxiv.org

Color dilution and hereditary defects in collie dogs by SR Roberts – American journal of ophthalmology, 1967 – ajo.com

White fur, blue eyes, and deafness in the domestic cat by DR BERGSMA, KS BROWN – Journal of Heredity, 1971 – academic.oup.com

DISEASES AND SURGERY or THE CANINE ANTERIOR UVEA by DVH Hendrix – Essentials of veterinary ophthalmology, 2013 – books.google.com

Pleiotropic effects of coat colour-associated mutations in humans, mice and other mammals by M Reissmann, A Ludwig – Seminars in cell & developmental biology, 2013 – Elsevier

Unilateral uveitis in a dog with uveodermatologic syndrome by KJ Sigle, GJ McLellan, JS Haynes… – Journal of the …, 2006 – Am Vet Med Assoc