PNAS in the News

Sand flies appear to have affinity for marijuana

Blood-sucking sand flies from disparate global regions have a predilection for feeding on the marijuana plant (Cannabis sativa), and the findings hint at a potential avenue for controlling sand flies, which can transmit leishmaniasis.

The Independent ●  Newsweek ●  PNAS Article

Human activity and calcite dissolution at the seafloor

A study explores human impacts on the composition of deep-sea sediments and, consequently, the geological record, and finds significant anthropogenic contribution to calcium carbonate dissolution at the seafloor.

Smithsonian Magazine ●  Live Science ●  PNAS Article

Climate change and mountaintop extinctions

A study suggests that climate change is driving high-elevation tropical species to extinction, with species moving to progressively higher elevations until they run out of habitat.

BBC ● VOA ●  PNAS Article

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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.