Secretions from a brown frog's skin contain chemicals that might be useful in fighting bacteria. Russian researchers are cataloging compounds in the slimy goo. Although the odds against them are long, the researchers hope their work will aid the search for new drugs.
Twenty students and six teachers were killed when a gunman opened fire at Sandy Hook Elementary School in Newtown, Conn. As police continue to investigate the massacre, some argue that it's time to change the conversation about guns in America.
Children in third through sixth grade consume more calories when snacking on potato chips, and fewer when they snack instead on raw broccoli, peppers, carrots and cheese combinations, according to a recent study. This adds to evidence that foods high in fiber and protein help us feel fuller.
The preservative thimerosal keeps vaccines from going bad in places where there is no refrigeration. Anti-vaccine activists say it should be banned because it contains mercury, but public health officials insist it's safe.
The shooting in Newtown, Conn., is likely to have an impact on many children, even those nowhere near the state. Host Guy Raz is joined by NPR's Jon Hamilton to talk about how parents, teachers and others who spend time with kids should prepare to discuss the event.
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