News
- Climate
Gulf Stream might be releasing seafloor methane
Greenhouse gas may be flowing into ocean waters off the U.S. east coast.
- Paleontology
Earliest primate had tree-climber ankles
A creature known only from fossils of its teeth gets some more parts.
- Chemistry
Human blood types have deep evolutionary roots
The ABO system may date back 20 million years or more, a genetic analysis suggests.
- Life
Hind wings gave four-winged dino flight control
Much-debated rear wings could have given Microraptor extra help in airborne maneuvers.
- Earth
Spanish quake linked to groundwater pumping
Draining aquifers likely triggered 2011 tremor that killed nine people.
