The animal kingdom is full of species with incredibly beautiful eye colors. We find colors all across the spectrum of the rainbow ranging from red and orange to green and blue.
Given the importance we affix to looking someone (or something) else in the eyes, it’s no wonder that ʜᴇᴛᴇʀᴏᴄʜʀᴏᴍɪc creatures, or creatures with two different eye colors, are so striking. Though ʜᴇᴛᴇʀᴏᴄʜʀᴏᴍɪᴀ is fairly rare in humans, its occurrence is far higher among animals, especially cats.
ʜᴇᴛᴇʀᴏᴄʜʀᴏᴍɪᴀ is a genetic trait that, depending on the creature it happens in, can be due to inbreeding, genetic inheritance or mutation. In some breeds of cats, like the Turkish Angora, ʜᴇᴛᴇʀᴏᴄʜʀᴏᴍɪᴀ is a desirable trait that breeders try to maintain.
In anatomy, ʜᴇᴛᴇʀᴏᴄʜʀᴏᴍɪᴀ refers to a difference in coloration, usually of the iris but also of hair or skin. ʜᴇᴛᴇʀᴏᴄʜʀᴏᴍɪᴀ is primarily the result of the relative excess or lack of melanin (a pigment). However, it may also be inherited, or caused by genetic mosaicism, disease, or injury.
Below you will find a gallery of animals (mainly cats and dogs) with two different colored eyes. These are all examples of ʜᴇᴛᴇʀᴏᴄʜʀᴏᴍɪᴀ and give each animal a very unique and memorable look.