Genetics, right? Sort of. Scientists just learned its a bit more nuanced than high school biology.

Lock eyes with a chimpanzee, and you will notice something is missing. The tissue surrounding their iris, called the sclera, ...

In this richly illustrated book, veteran science author Parker (Evolution: The Whole Story) details the evolution of vision over billions of years via the development of multiple types of eyes. Light ...

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 ...

Humans carry a surprising relic from deep evolutionary history, one that traces back to a tiny, one-eyed ancestor that lived ...

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 ...

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 ...

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 ...

When evolution skeptics want to attack Darwin's theory, they often point to the human eye. How could something so complex, they argue, have developed through random mutations and natural selection, ...