News
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Health & MedicineLearning from leprosy’s nerve damage
The bacterium that causes leprosy directly damages a protective sheathing around many nerve cells.
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EcosystemsFamine 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.
By Susan Milius -
EnvironmentOld 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.
By Janet Raloff -
EarthAlgae Turn Fish into a Lethal Lunch
Scientists demonstrated that some marine mammals have died from eating fish tainted with a neurotoxic diatom.