A pair of sister cats, Iriss and Abyss, from the United Kingdom, are affected by a harmless condition that causes each of their eyes to be different colors: each right eye is hazel colored, while each left eye is a piercing sapphire blue.
The unusual condition, called heterochromia iridis, has made the female cats famous with the help of their extremely proud dad, Pavel Dyagilev, age 34, of Saint Petersburg, Russia, who launched their very own Instagram page. He lauded them as “the most beautiful twin cats in the world.”