Abundant but mysterious molecules called long noncoding RNAs have long puzzled scientists, but some now think they could be influencing the shape of chromatin.

Author: Elizabeth Pennisi

Analyses of DNA of Latinos in South Florida traced their African, European, and South American ancestries.

Author: Elizabeth Pennisi

The National Science Foundation rebuffed a request from the chairman of the House of Representatives science committee for reviewer comments that helped the agency decide to fund five projects in the social sciences.

Author: Jeffrey Mervis

The most dramatic progress has been made on the twin prime conjecture and Goldbach's conjecture in more than a century and a half of trying.

Author: Dana Mackenzie

The U.S. Department of Energy has funded a series of energy innovation hubs to tackle big energy challenges from start to finish. But their future is uncertain.

Author: Adrian Cho

Wolves in an iconic predator-prey study are not producing pups, leaving scientists to confront a genetic rescue—or the project's demise.

Author: Christine Mlot

Authors: Hugo Bornatowski, Raul Rennó Braga, Jean Ricardo Simões Vitule

Author: Jaboury Ghazoul

Author: Jason M. Tylianakis

Authors: Nicholas F. Fitz, Andrea A. Cronican, Iliya Lefterov, Radosveta Koldamova

Authors: Ashleigh R. Price, Guilian Xu, Zoe B. Siemienski, Lisa A. Smithson, David R. Borchelt, Todd E. Golde, Kevin M. Felsenstein

Authors: Ina Tesseur, Adrian C. Lo, Anouk Roberfroid, Sofie Dietvorst, Bianca Van Broeck, Marianne Borgers, Harrie Gijsen, Diederik Moechars, Marc Mercken, John Kemp, Rudi D’Hooge, Bart De Strooper

Authors: Karthikeyan Veeraraghavalu, Can Zhang, Sean Miller, Jasmin K. Hefendehl, Tharinda W. Rajapaksha, Jason Ulrich, Mathias Jucker, David M. Holtzman, Rudolph E. Tanzi, Robert Vassar, Sangram S. Sisodia

Authors: Gary E. Landreth, Paige E. Cramer, Mitchell M. Lakner, John R. Cirrito, Daniel W. Wesson, Kurt R. Brunden, Donald A. Wilson

Vicedo's examination of the history of attachment theory and the concept of "mother love" illustrates the impact prevailing preconceptions have on efforts to draw social lessons from biology.

Author: Ben Harris

A listing of books received at Science during the week ending 17 May 2013.

Field-based evidence suggests that guidelines against economic rewards to motivate blood donors should be reconsidered.

Authors: Nicola Lacetera, Mario Macis, Robert Slonim

Genetic evolution may have been driven by cultural innovations during the emergence of modern humans.

Authors: Simon E. Fisher, Matt Ridley

Proteins that take too long to fold are tagged with sugar to stop their failed attempts and remove them from the cell's folding compartment. [Also see Report by Xu et al.]

Authors: Bertrand Kleizen, Ineke Braakman