For most of human history, green eyes didn’t exist. Understanding why they do now means rethinking what we know about evolution itself.

What if the way animals see the world had developed differently? Researchers at MIT have used artificial intelligence to explore this idea - not through imagination, but through simulation. Study: ...

Many animals, including humans, rely on their eyes to detect changes in their surroundings. The eyes of vertebrates, animals ...

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 ...

Q: What fascinates you about the eye? A: The eye is an absolutely fascinating organ because it's an organ of extreme perfection, as Darwin has called it. We are able to adjust the focus, we are able ...

From butterflies to peacocks, bold circular "eyespots" are among nature's most eye-catching patterns. But why do they appear in some animals and not others? A new study of skates and rays finally ...

An illustration of a four-eyed myllokunmingid, a jawless fish that lived more than 500 million years ago Xiangtong Lei and Sihang Zhang Many spine-bearing creatures, or vertebrates, have a curious bit ...