In the landmark 1986 book Origins of Sex, biologist Lynn Margulis and science writer Dorion Sagan trace the first appearance of sex back billions of years, to bacteria. Here, they describe the complex evolutionary history that their book will seek to untangle. The following is an excerpt from the introduction.
Follow @yaleSCIbooks Lynn Margulis, a biologist whose work on the genesis of new types of cells revolutionized our understanding of evolution, died at her home in Amherst, Massachusetts on November 22, after suffering a stroke. The Washington Post called Margulis, who was 73, “a rebel within the realm of science,” pointing