Humans
- Health & Medicine
Wanted: ‘Smart’ cleaners
Active surfaces will — on their own — help remove everything from insects and germs to poisons.
- Chemistry
A penny for your health?
Copper is best known as the reddish metal used to make pennies, electrical wiring and weather vanes. But two teen scientists think copper should find its way into medical settings as well. Their data suggest the metal — in bandages or on surfaces — could play a major role in killing some types of bacteria responsible for serious infections.
- Health & Medicine
Killer-flu update
Infection that recently developed in China shows signs of being easy to spread and hard to kill.
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- Health & Medicine
Fuzzy future
Kids may suffer impaired vision from spending too little time outdoors, studies suggest.
- Archaeology
American cannibals
Skeletal remains of a Jamestown teen show signs of cannibalism in colonial America, new data show. The girl’s skull provides the first concrete support for historical accounts that some starving colonists had resorted to eating the flesh of others.
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- Animals
Infectious animals
Critters spread many germs that can sicken each other — and even kill people.
- Animals
Explainer: People can sicken animals
Wildlife can sometimes become infected with germs shed by people.
- Life
Stem cells: The secret to change
Unusual, versatile cells hold the key to regrowing lost tissues.
