News
- Animals
Early arthropod had a fancy brain
A 520-million-year-old fossil of a segmented animal shows that sophisticated central nervous systems are surprisingly ancient.
- Chemistry
Depths hold clues to dearth of xenon in air
The gas doesn’t dissolve well in minerals deep inside Earth, a discovery that may explain why it’s also scarce in the atmosphere.
- Life
Research in cell communication system wins 2012 chemistry Nobel
G protein-coupled receptors relay messages from other cells and the environment into the cell's interior.
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