The Proceedings of the National Academy of Sciences of the United States of America, usually referred to as PNAS, is the official journal of the United States National Academy of Sciences (NAS). PNAS is an important scientific journal that printed its first issue in 1915 and continues to publish highly cited research reports, commentaries, reviews, perspectives, feature articles, profiles, letters to the editor, and actions of the Academy. Coverage in PNAS broadly spans the biological, physical, and social sciences. Although most of the papers published in the journal are in the biomedical sciences, PNAS recruits papers and publishes special features in the physical and social sciences and in mathematics. PNAS is published weekly in print, and daily online in PNAS Early Edition. PNAS was established by NAS in 1914, with its first issue published in 1915. The NAS itself had been founded in 1863 as a private institution, but chartered by the US Congress, with the goal to "investigate, examine, experiment, and report upon any subject of science or art." By 1914, the Academy was well established.
Around 100 million years ago, a group of land-dwelling turtles took to the oceans, eventually evolving into the sea turtles that we know today. However, the genetic foundations that have enabled them to thrive in oceans throughout ...
Evolution
15 hours ago
0
180
A team of biologists at Osaka City University, working with a colleague from the University of Neuchâte, reports that a type of cleaner fish can pass the mirror test and then recognize itself in a photograph. In their paper ...
A trio of anthropologists from Touro University, the University of Arkansas and Stony Brook University analyzed current methods available to scientists looking to identify the food that a particular early hominin had eaten ...
In the past two decades, many state governments have enacted voter identification requirements for constituents voting in their state, requiring a photo ID or other significant proof to access a ballot. These laws were intended ...
Political science
20 hours ago
0
16
Researchers have pinpointed two intervals when ice and ocean conditions would have been favorable to support early human migration from Asia to North America late in the last ice age, a new paper published today in the Proceedings ...
Earth Sciences
Feb 6, 2023
0
78
A new examination of ancient and current species of reptiles conducted by a University of Texas at Austin paleobiologist reveals the serious impact of the disappearance of even a few species of reptiles in some island areas. ...
Plants & Animals
Feb 6, 2023
0
58
In the race to restore some of North America's most biodiverse and threatened ecosystems, a straightforward first step is likely among the most important.
Ecology
Feb 6, 2023
0
46
Political ideology shapes attitudes about COVID-19 treatments not just for the general U.S. population but also for critical care physicians, according to new research led by University of Pittsburgh scientists.
Social Sciences
Feb 6, 2023
0
55
Plants, like animals and people, seek refuge from climate change. And when they move, they take entire ecosystems with them. To understand why and how plants have trekked across landscapes throughout time, researchers at ...
Ecology
Feb 6, 2023
0
49
A fishing community in southern Brazil has an unusual ally: wild dolphins.
Ecology
Feb 4, 2023
0
20
