G. Ledyard Stebbins Quotes & Sayings
Enjoy the top 2 famous quotes, sayings and quotations by G. Ledyard Stebbins.
Famous Quotes By G. Ledyard Stebbins
After a greater or lesser number of generations the mutants are eliminated. — G. Ledyard Stebbins
No biologist has actually seen the origin by evolution of a major group of organisms. — G. Ledyard Stebbins