"You see, every creature alive on the earth today represents an unbroken line of life that stretches back to the first primitive organism to appear on this planet; and that is about three billion years."

Unbroken

From

Scientist

Added on

About George Wald

George Wald was an American biologist and physiologist known for research on visual pigments in the retina. He shared the 1967 Nobel Prize in Physiology or Medicine for discoveries concerning the primary physiological and chemical visual processes in the eye. He taught for decades at Harvard University.

Born:

Died:

View all quotes from George Wald