cover image How the Leopard Changed Its Spots: The Evolution of Complexity

How the Leopard Changed Its Spots: The Evolution of Complexity

Brian Goodwin. Scribner Book Company, $23 (252pp) ISBN 978-0-02-544710-3

Arguing that Darwin's theory of natural selection cannot explain the emergence of distinctive species, British biologist Goodwin proposes an alternative theory of evolution. He views organisms as dynamic systems, themselves the primary agents of creative evolutionary adaptation and change that occurs in a matrix of relationships with other members of the same species. Instead of DNA as the carrier of inherited, survival-promoting factors from parent to offspring, he posits that ``inherited particulars''-nucleic-acid sequences of DNA or specific structures of the parent organism-get transmitted, thereby generating form. As an organism matures from egg or bud to adult, characteristic types of order emerge from the chaotic interactions of genes, molecules and the environment, in his hypothesis. Goodwin buttresses his rigorous presentation with computer modeling and mathematics. His noteworthy, if complex, model implies that cooperation and webs of relationships play as important a role in evolution as competition, inheritance and the struggle for survival. (Nov.)