He set out his ideas in the second edition of Of Pandas and People published in 1993, extensively revising Chapter 6 Biochemical Similarities with new sections on the complex mechanism of blood clotting and on the origin of proteins.
Explicou amplamente estas ideas na segunda edición do libro "Of Pandas and People" publicado en 1993, revisando a fondo o capítulo 6, "Biochemical Similarities" (Similitudes bioquímicas) con novas seccións no mecanismo complexo da coagulación do sangue e a orixe das proteínas.