"What good is a rattlesnake? What purpose do animals serve? All species play a vital role in their biological communities, and the removal of just one can have a noticeable and catastrophic ripple effect. Yet social and political pressures frequently pit species conservation against economic progress and prosperity, and scientists fear that we may be in the midst of a mass extinction event. Brian R. Chapman and William I. Lutterschmidt m ..."
Matemáticos de Estados Unidos Claude Elwood Shannon, John Forbes Nash, Solomon Lefschetz, Hilary Putnam, John von Neumann, Kurt Gödel, Charles Sanders Peirce, Theodore Kaczynski, Jim Simons, Dana Scott, Jef Raskin, Herman Goldstine, Serge Lang, Orson Pratt by Fuente: Wikipedia Paperback, 112 Pages, Published 2011 by Books Llc, Wiki Series ISBN-13: 978-1-232-50662-1, ISBN: 1-232-50662-1