Half a billion years ago, the first true eye emerged in Earth’s oceans. Fossils now reveal what that ancient crystal vision ...

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 ...

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 ...

CAMBRIDGE, MA -- Why did humans evolve the eyes we have today? While scientists can’t go back in time to study the environmental pressures that shaped the evolution of the diverse vision systems that ...