Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

Sugar-loving mouth bacteria create acids that damage teeth, but arginine can help fight back. In a clinical trial, ...

There could be new hope in the fight against gum disease. Scientists have developed a toothpaste that targets only the ...

NPR's Short Wave talks about elephants' sniffing abilities, the remarkable migration of painted lady butterflies and a ...