G. Ledyard Stebbins Quotes

• No biologist has actually seen the origin by evolution of a major group of organisms.

  G. Ledyard Stebbins

  Groups, Evolution, Biologist

  7 Copy quote

• After a greater or lesser number of generations the mutants are eliminated.

  G. Ledyard Stebbins

  Numbers, Mutants, Generations

  6 Copy quote

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