Have a tender FURiday, dear FURiends! Meow --...  ...tagramcats #we_love_cats #catsoftheday #lovecats # heterochromia #catsofinstagram #7catdays #bestcats_oftheworld #...  ...hey are Iriss and Abyss, 9-month-old sisters with heterochromia . They live in St. Petersburg, Russia, where they&...

When you think about heterochromia in cats, you picture a left eye of a different co...

Heterochromia is more common in dogs than in people, and it's a...