News
- Chemistry
Water softeners get friendlier to health, environment
New technology softens water without adding sodium, which ends up in drinking water and contaminates the environment.
- Genetics
DNA data offer evidence of unknown extinct human relative
Melanesians may carry genetic evidence of a previously unknown extinct human relative.
- Life
Virus triggers immune proteins to aid enemy
Virus-fighting proteins in the immune system can sometimes help out their targets instead.
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- Paleontology
Ancient armored fish revises early history of jaws
The fossil of a 423-million-year-old armored fish from China suggests that the jaws of all modern land vertebrates and bony fish originated in a bizarre group of animals called placoderms.
