What animals eat irises?
Cats like to eat irises, but they are bad for the cats. Deer don't eat it, because they hate the scent (one we humans can't smell) of the flower. I do not what other animals eat irises, but I know barely any do.
Many animals with a visible white sclera are mammals. Humans have more visible white sclera due to smaller irises. Animals like dogs, cats, cows, rabbits, etc. have white sclera. However, due to their large irises, the sclera only show when the irises are off-center, such as when they look to the side.