PNAS

Volume 116, Issue 7: View articles in the latest issue of PNAS.
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Latest in ecology: Climate affects functional traits of forests and worldwide species distribution. Click to read more. Image courtesy of Brian J. Enquist.
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Click here for articles from the Sackler Colloquium on Creativity and Collaboration: Revisiting Cybernetic Serendipity.

Front Matter

Opinion: “Plan S” falls short for society publishers—and for the researchers they serve

Several aspects of the proposal, which aims to expand open access, require serious discussion and, in some cases, a rethink.

Image credit: Dave Cutler (artist).

Core Concept: Solving Peto’s Paradox to better understand cancer

Several large or long-lived animals seem strangely resistant to developing cancer. Elucidating the reasons why could lead to promising cancer-fighting strategies in humans.

Image credit: Shutterstock.com/ronnybas frimages.

Journal Club: Pinpointing theory of mind deficiencies in autism

In the News

Nonmonogamous strawberry poison frog (Oophaga pumilio). Image courtesy of Yusan Yang (University of Pittsburgh, Pittsburgh).

Putative signature of monogamy

A study suggests a putative gene-expression hallmark common to monogamous male vertebrates of some species, namely cichlid fishes, dendrobatid frogs, passeroid songbirds, common voles, and deer mice, and identifies 24 candidate genes potentially associated with monogamy.

Image courtesy of Yusan Yang (University of Pittsburgh, Pittsburgh).

Active lifestyles. Image courtesy of Pixabay/MabelAmber.

Meaningful life tied to healthy aging

Physical and social well-being in old age are linked to self-assessments of life worth, and a spectrum of behavioral, economic, health, and social variables may influence whether aging individuals believe they are leading meaningful lives.

Image courtesy of Pixabay/MabelAmber.

New Caledonia, Coral Sea in the Pacific Ocean. Image courtesy of Laure Zanna.

Reconstructing ocean warming history

A reconstruction of ocean heat storage since 1871 finds that oceans gained heat during the years 1921-1946 at the same rate as since 1990, and the findings on ocean circulation changes can help predict future patterns of warming and sea level rise.

Image courtesy of Laure Zanna.