Shadows of Forgotten Ancestors: Earth Before Humans by ANN DRUYAN' 'CARL SAGAN by Ann Druyan, Carl Sagan
Shadows of Forgotten Ancestors: Earth Before Humans by ANN DRUYAN' 'CARL SAGAN

Ann Druyan, Carl Sagan

Shadows of Forgotten Ancestors: Earth Before Humans by ANN DRUYAN' 'CARL SAGAN

Ann Druyan, Carl Sagan

505 pages first pub 1992 (editions)

nonfiction history philosophy science informative reflective slow-paced
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