To stop elephant slaughter in Africa, zoologist Sam Wasser spent years extracting DNA from elephant dung and tissue. Much of the world's poached ivory, he discovered, comes from just three places.
NPR's Melissa Block speaks to John Carr of Georgetown University's Initiative on Catholic Thought and Public Life about Pope Francis' call to moral action on climate change.
Catholics across the nation are reacting to a sweeping encyclical issued by Pope Francis on the issue of climate change. The 184-page papal letter explains that it is a global problem with far reaching environmental and social ramifications.
Pope Francis blames climate change on apathy, political shortsightedness and a pursuit of profits. In a papal encyclical, he calls climate change one of the principal challenges facing humanity today.
An expert forager has a video and an app for finding weeds to make the ultimate locally grown salad. But even a master foraging app might not lead an amateur to success.
The probe would make dozens of flybys of the Jovian moon in an effort to study its vast subterranean ocean that could harbor life.
The new evidence suggests the ancient skeleton is closely related to members of a Washington State tribe. The findings are likely to rekindle an old debate between scientists and Native Americans.
Better read the fine print of your health insurance policy. An unlucky woman in Minnesota learned her policy was woefully skimpy only after she fell while walking her dogs, and faced a $19,000 bill.
In a major encyclical titled Laudato Si, the pontiff calls on humanity to acknowledge a "sense of responsibility" for the Earth and said it was time to stop "masking problems."
A quarter of U.S. physicians are older than 65 and there are no national guidelines for assessing late-career skills. Some say the lack of oversight, especially for surgeons, is cause for concern.
In what researchers say is a first, they've discovered the neuron in worms that detects Earth's magnetic field. They say the worms have microscopic antenna-shaped sensors to help orient themselves.
M.C. Davis made millions gambling and buying up land and mineral rights. Now, he's restoring ecosystems destroyed by agriculture and timbering in his private preserve, one of the largest in the U.S.
A draft of Pope Francis' encyclical on climate climate change was leaked Wednesday before its scheduled release.
Due to warm ocean temperatures, tens of thousands of red crabs are invading beaches in Southern California.
Individual differences in the brain's working memory could help explain why some teens are especially impulsive about sex. Having engaged parents helps reduce the risk.
If fruits and vegetables don't measure up to cosmetic standards, they're often plowed under in the field. One company wants to help change that by creating a market for less-than-perfect produce.
New data suggest that many regions in the world are overusing their underground water supplies. And researchers aren't sure how much remains.
And when the use of intrauterine devices and hormonal implants by young women goes up, the number of unplanned pregnancies sharply drops, researchers find.
Disagreeable teens tend to grow up into disagreeable adults. A 10-year study finds that disagreeable teens often have no awareness that their behavior is harming their relationships.
Lawmakers in hard-hit Western states are pushing for suspensions to the Endangered Species Act to free up stored water. But an entrenched partisan divide over the law continues to be a hang-up.