Contents

21 April 2017
Vol 356, Issue 6335

About The Cover

Cover image expansion

COVER Remnant of the Atlantic Forest system near Iguaçu National Park in Brazil. Agriculture is increasingly replacing natural environments, a pattern that reduces diversity and threatens the stability of the ecosystems upon which all life depends. For more on "ecosystem Earth" stressors and possible solutions, see the special section beginning on page 258.
Photo: © Frans Lanting