News
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Blood cues sex choice for parasites
Malaria parasites shift their female-biased production of offspring toward a more evenly balanced sex ratio as an infection proceeds.
- Health & Medicine
Learning from leprosy’s nerve damage
The bacterium that causes leprosy directly damages a protective sheathing around many nerve cells.
- Ecosystems
Famine reveals incredible shrinking iguanas
Marine iguanas in the Galápagos Islands are the first vertebrates known to reduce their size during a food shortage and then regrow to their original body lengths.
- Environment
Old thermometers pose new problems
Though health groups advocate getting mercury thermometers out of the home, obtaining sound advice on how to dispose of the thermometers can be problematic.
