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Spiderwebs can capture environmental DNA, or eDNA, from vertebrate animals in their area, potentially making them a useful tool in animal monitoring, tracking and conservation.

The Litani river descends from Lebanon's snow-capped mountains into dusty towns, then bisects the country and empties out into the Mediterranean. Along the way, it serves as a lifeline and boundary demarcating religion, environments, and war.

NPR's Sarah McCammon previews this year's UN climate summit with Kelly Sims Gallagher, an environment and resource policy expert and dean of the Fletcher School at Tufts University.

A whistleblower complaint says the personal data of over 300 million Americans was copied to a private cloud account to allow access by former members of the Department of Government Efficiency team.

Three citizenship ceremonies NPR attended in the Washington, D.C. area in January were largely celebratory experiences, despite a year of hurdles and changes to the naturalization process.

Pope Francis has died at age 88. He was a strong advocate for the poor, the environment and was a towering figure on the world stage.

German architect Frei Otto has been named the 2015 winner of the Pritzker Architecture Prize. The announcement was moved up from March 23, because Otto died on Monday at the age of 89.

Gorilla experts with the Wildlife Conservation Society say they've made a spectacular find in the forests of the Republic of Congo: 125,000 previously undiscovered western lowland gorillas. The animals are critically endangered.

"You can evaluate the person as a whole," says Dr. Roberta Miller, who has been a home care physician for more than 20 years. The traditional house call may be the future of medicine.

Engineers made a radio receiver with building blocks the size of two atoms. One benefit of a radio so small you can barely see it: The machine works at extremely high temperatures.