The evolution of the human eye - Joshua Harvey

View full lesson: http://ed.ted.com/lessons/the-evolution-of-the-human-eye-joshua-harvey

The human eye is an amazing mechanism, able to detect anywhere from a few photons to a few quadrillion, or switch focus from the screen in front of you to the distant horizon in a third of a second. How did these complex structures evolve? Joshua Harvey details the 500 million year story of the human eye.

Lesson by Joshua Harvey, animation by Artrake Studio.

Видео The evolution of the human eye - Joshua Harvey канала TED-Ed