George Wald
George Wald
George David Waldwas an American scientist who is best known for his work with pigments in the retina. He won a share of the 1967 Nobel Prize in Physiology or Medicine with Haldan Keffer Hartline and Ragnar Granit...
NationalityAmerican
ProfessionScientist
Date of Birth18 November 1906
CountryUnited States of America
alive appear billion creature life line organism primitive represents three
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.