The horse-sized Timurlengia euotica provides a glimpse into a 20-million-year gap in fossil records, when tyrannosaurs evolved from "marginal hunters" to "apex predators."
Great pumpkin pie is elusive. You could end up with a soggy crust or a grainy filling. Reporter Maanvi Singh embarked on a months-long quest to crack the code for the ideal pie.
Research finds that when you put powerful people together in a group, individuals tend to vie for the same level of authority and deference they receive outside the group.
Terminally ill Californians will legally be able to get medicine from doctors to end their own lives. The end of the state's special legislative session Thursday made it official.
Scientists found a new species of bacteria in the debris around a Japanese recycling plant. With the help of two plastic digesting enzymes, it can eat plastic and use it as a main food source.
Many Floridians and other Americans turn to the ER for problems that aren't emergencies, a poll suggests, even though the experience can be unpleasant. Some ERs are striving to change their image.
Five years after meltdowns at the Fukushima Dai-ichi nuclear power plant in Japan, progress has been made, but there's still plenty to do.
Getting an accurate diagnosis is a big hurdle in the current outbreak of Zika virus. There are three kinds of tests for Zika, and each has problems. Scientists are working hard to improve diagnosis.
President Obama and Canadian Prime Minister Justin Trudeau unveiled goals for cutting methane emissions from the oil and gas industry by more than 40 percent by 2025, among other ambitious targets.
Children who are the youngest in a class are more apt to be diagnosed with ADHD, studies find. But researchers say that doesn't mean that they have the disorder.
Eric O'Grey was 51, obese and suffering from diabetes and high cholesterol when he took home an overweight shelter dog. Now the duo are headlining a campaign on how pets improve humans' lives.
The 26-year-old patient is recovering, and the Cleveland Clinic says it will continue its clinical study that is meant to involve 10 women with uterine factor infertility.
Long before cooking was common, early humans needed extra energy to fuel bigger bodies and brains. Scientists say simple stone cutting tools likely allowed small-toothed meat eaters to thrive.
It's rare for researchers to share their data as they work, but scientists in Wisconsin are reporting on their Zika virus experiments in real time. They say it's critical for stopping the virus.
The tap draws from Lake Huron. Eatery owners have bought ice, bottles and expensive filters. Large signs in windows post lead-free test results. But diners in this Michigan city are still leery.
On Wednesday in Korea, a Google AI program will take on a top-level player in the ancient game of Go. Here's what you need to know.
The Affordable Care Act has increased access to doctors and helped reduce medical costs. But poll data show 26 percent of U.S. families are still struggling to pay their health care bills.
NPR's Kelly McEvers speaks with Dr. Hans Keirstead, a stem cell research pioneer, about former First Lady Nancy Reagan's legacy as an Alzheimer's research advocate.
A recent poll shows 27 percent of Americans have visited an urgent care center in the past two years. Why? Most cite convenience.
Think you've gone gray from stress? Scientists say they've identified the first gene for gray hair. It accounts for about 30 percent of grays, mostly in lighter colored hair.