Early Edition

New papers posted daily


Spotted salamander

Management of small natural features on private land.
Image Gallery »



  • post thumbnail
  • Gomphothere hunting at an early Clovis site
    A study of an archaeological site in Mexico finds evidence of the early Clovis culture in North America more than 13,000 years ago, along with evidence for elephant-like gomphotheres as Clovis prey.
  •  Live Science Logo
  • National Geographic Logo

  • post thumbnail
  • Speech perception in infants
    According to a magnetoencephalography study of 57 infants, infants undergo a transition between 7 and 11 months of age in which native and foreign speech sounds activate motor and auditory brain regions in patterns similar to those seen in adults, suggesting that speech perception involves a coupling of auditory and motor brain regions to analyze speech sounds and predict how to reproduce them.
  • Wired Logo
  • Seattle Times Logo


PNAS Direct to Your Inbox

Or subscribe to one of our RSS Feeds »

PNAS Portals


NEW! PNAS Magazine Section and Blog

PNAS is now publishing new sections including News Features, Inner Workings, Opinions, Core Concepts, and Science and Culture.
Plus, in the PNAS First Look blog, science journalists discuss a selection of new papers from PNAS with new content appearing every business day.

Top Articles

  1. Experimental evidence of massive-scale emotional contagion through social networks
  2. Spontaneous knotting of an agitated string
  3. Evidence for elevated and spatially variable geothermal flux beneath the West Antarctic Ice Sheet
  4. Rescuing US biomedical research from its systemic flaws
  5. Active learning increases student performance in science, engineering, and mathematics

Follow PNAS on Facebook

PNAS
Like
Like
You like this.22,147
.


NAS, National Academy of Sciences
HighWire Press, Stanford University
PNAS
PNAS

PNAS Online is distributed with the assistance of
HighWire Press® | Online ISSN 1091-6490
Copyright © 2014 National Academy of Sciences. Website by Boston Interactive
SECURITY WARNING: Please treat the URL above as you would your password and do not share it with anyone. See the Facebook Help Center for more information.
SECURITY WARNING: Please treat the URL above as you would your password and do not share it with anyone. See the Facebook Help Center for more information.
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%