Mascara can accentuate the eye and round out any makeup look, but the shade of your mascara makes a major difference in your ...

Black irises have been spotted in gannets that test positive for bird flu antibodies, ... The blue eyes of some seabirds appear to turn black after they have had a bird flu infection.

Black eyes have been reported in gannets once before, although the reason is unknown. Gannets with black irises have also been reported in other colonies in the UK, France, Germany and Canada.

Animals with blue eyes are a rare occurrence in nature due to being linked to recessive genetics, mutations, and specific genes. Despite that, many species still have beautifully rich blue eyes.