TIM FOLGER is a contributing editor at Discover and writes about science for several magazines. He lives in New Mexico.

Twenty-seven of America's best science and nature essays of 2013, selected by the author of The Emperor of All Maladies and the #1 New York Times bestseller, The Gene.

Pulitzer Prize-winning author Siddhartha Mukherjee, a leading cancer physician and researcher, selects the year's top science and nature writing from journalists who dive into their fields with curiosity and passion, delivering must-read articles from a wide array of fields.

The Best American Science & Nature Writing 2013 includes:

"The T-Cell Army" by Jerome Groopman
"The Artificial Leaf" by David Owen
"The Life of Pi, and Other Infinities" by Natalie Angier
"Altered States" by Oliver Sacks
"Recall of the Wild" by Elizabeth Kolbert
"Super Humanity" by Robert M. Sapolsky
"Can a Jellyfish Unlock the Secret of Immortality?" by Nathaniel Rich

Contributors also include:
J. B. Mackinnon · Benjamin Hale · Tim Zimmermann · David Deutsch and Artur Ekert · Michael Moyer · Sylvia A. Earle · John Pavlus · Michelle Nijhuis · Rick Bass · Michael Specter · Alan Lightman · David Quammen · Keith Gessen · Steven Weinberg · Gareth Cook · Katherine Harmon · Stephen Marche · Mark Bowden · Kevin Dutton