84-90: Carl Zimmer on Eyes

Eyes, Part One: Opening Up the Russian Doll: Corante > The Loom > :

The more scientists study the eye, the more they recognize that Darwin was right.

Eyes evolving in apes (even humans).

Eyes evolving in animals from insects to mammals.

Eyes evolving from the simplest photoreceptors.

The origins of photoreceptors.

I count 6 distinct lines of research, each undoubtedly developed in numerous papers, demonstrating that the eye is entirely reducible.