Trilobites: Solitary Pumas Turn Out to Be Mountain Lions Who Lunch
After tracking 13 pumas at feeding spots in Wyoming for three years, researchers mapped complex social networks of reciprocity among the predatory...
MacArthur Foundation Names 2017 ‘Genius’ Grant Winners
The MacArthur fellowship this year honors 24 artists, scholars, activists and others chosen for exceptional “originality, insight and potential.”
Trilobites: The Dirty Secrets Saved in Dead Birds’ Feathers
The feathers of birds preserved in natural history museum collections record changes to historical air quality across America’s Rust Belt, a new...
Trilobites: A Surprise From the Supervolcano Under Yellowstone
The conditions that lead to supereruptions can emerge within a single human lifetime, according to a study of the volcano’s remnants in the...
E.P.A. Says It Will Write a New Carbon Rule, but No One Can Say When
Industry leaders and environmentalists both doubt the agency will move quickly to replace former President Obama’s Clean Power Plan with something...
What Is the Clean Power Plan, and How Can Trump Repeal It?
President Trump wants to scrap the Obama-era initiative. What will happen next, and how does this relate to the Paris climate agreement?
Why Stanford Researchers Tried to Create a ‘Gaydar’ Machine
Scientists worried that facial recognition software could be used to detect sexual orientation. Their efforts to raise an alarm caused an uproar.
E.P.A. Announces Repeal of Major Obama-Era Carbon Emissions Rule
The rollback of the Clean Power Plan, which limits greenhouse gas emissions from power plants, sets up a bitter fight over United States climate...
Fly Over Colorado’s Autumn Colors in 360°
Stands of aspen trees grow as a single organism, each changing to the same color at the same time. Visit White River National Park and witness...
Global Health: As Cancer Tears Through Africa, Drug Makers Draw Up a Battle Plan
In a deal similar to the one that turned the tide against AIDS, manufacturers and charities will make chemotherapy drugs available in six poor...
Fearsome Plague Epidemic Strikes Madagascar
In a way reminiscent of the early days of West Africa’s Ebola outbreak, a disease that is normally rural has reached cities and is spreading rapidly.
Take a Number: Researchers Predict a Quarter-Million New Cases of Breast Cancer in the U.S.
More than 40,000 women will die from the disease in 2017, the American Cancer Society projects. Racial disparities persist but are “not inevitable.”