News
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PaleontologyDinos molted for a new look
In one species, adolescents appear to have sprouted a new type of feathers as they matured.
By Sid Perkins -
Materials ScienceInfection, kill thyself
Scientists devise wound dressings that trick bacteria into suicide.
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HumansVision gets better with the right mind-set
Volunteers’ eyesight improved when they believed that they could see particularly well.
By Bruce Bower -
Health & MedicineBody makes its own morphine
A study in mice suggests other mammals, including humans, can produce the painkiller in their bodies.
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AnimalsChimps may be aware of others’ deaths
Reactions of chimps to dead companions and infants suggest a basic realization of what death entails.