“From Brown to Evergreen: How Eye Colors Evolved” Your eyes may seem ordinary when you catch your reflection each morn ...

Even Charles Darwin was puzzled by the evolution of the vertebrate eye. New research suggests that it traces back to a cyclopean invertebrate with a single eye atop the head. By Carl Zimmer Look at ...

Yet to Mother Nature, the evolution of the eye isn’t really a difficult feat at all, it turns out. Indeed, there are about 10 different types of eye design in the animal kingdom, and eyes have evolved ...

Have you ever wondered why some people have lighter eyes than others? Differences in iris coloration have traditionally been explained as a result of sexual selection, but a recent study led by ...

Prologue : Molecular genesis -- The age of first cellular life -- The age of complex cellular life -- Eukaryotes organize and metazoans arise -- Early animals prepare the ground -- Vision's big bang ...