A new study finds Medicare pays billions annually for low-value tests and treatments. See which procedures waste the most and ...

Study finds two-thirds of Americans want a more multicultural U.S., challenging common narratives about demographic fear and ...

Antarctic leopard seals sing complex underwater songs with patterns comparable to nursery rhymes, new research reveals.

Researchers in China have built a household robot that can spot objects on floors and gently collect them with soft, inflatable fingers, though only in controlled laboratory settings so far.