Other common misconceptions include that "two blue-eyed parents cannot have a brown-eyed baby or that blue eyes are the most rare eye color," she added. Here we unpack the complexities behind ...

Globally, green eyes are the rarest eye color—showing up in a small two percent of the world's population. Depending on where exactly you live geographically, green eyes may be more or less common.

Red hair and green eyes together is a particularly rare occurrence. Both traits are the result of recessive genes, just as blue eyes or O blood type is.