PNAS in the News

Physicians’ political views and patient care

A study suggests that patient care can vary based on physicians’ political views.


PNAS Article

Frog population recovery in the Sierra Nevada

The endangered Sierra Nevada yellow-legged frog (Rana sierrae) has increased in abundance in Yosemite National Park, California, according to a study.


PNAS Article

Sound-meaning associations in language

Based on an analysis of nearly two-thirds of the world’s languages, researchers report statistical associations between sounds and word meanings, such as ”n” with words for “nose” and “r” with "round," which are common across otherwise unrelated languages, suggesting that the relationship between sound and meaning in human languages might not be entirely arbitrary.


PNAS Article


Teaching Resources in PNAS

As a world-class multidisciplinary research journal, PNAS offers a wealth of content—from Core Concepts articles that explain a trending topic in a given field, to the ability to quickly download figures and tables for PowerPoint slides—that will enhance course curricula and encourage classroom discussion. These informative resources are collected here in the PNAS Teaching Resources Portal.


Oct 24, 2016
Canonical URL: Profile of Henry Kapteyn
Oct 18, 2016
Sep 06, 2016
Aug 23, 2016
Canonical URL: Profile of Eva Nogales
Aug 23, 2016


Honeybees and biofuel crops
Clint Otto discusses the impact of land-use changes on beekeepers in the Dakotas. Image courtesy of Wikimedia Commons/Louise Docker.