Biologist who all discovered the roots of eukaryotic organelles and showed that pets, plant life, and fungi all comes from Protists. Her initial husband was renowned astronomer Carl Sagan. She went to the School of Chicago and UC Berkeley. She was chosen to be always a apart from the Leonardo DaVinci Culture of Thinking this year 2010. She acquired four kids with Carl Sagan whom she wedded in 1957, before afterwards marrying Dr. Thomas N. Margulis. She wedded Carl Sagan when she was 19 years of age.