NPR's Robert Siegel speaks with Jonathan Losos, author of the new book, Improbable Destinies: Fate, Chance, and the Future of Evolution, which explores the growing understanding of "convergent evolution."
Michael Jacobson invented a new style of food activism. For four decades, he led the fight against "junk food." He's now stepping down as president of the Center for Science in the Public Interest.
Several species of parrots in Southeastern Peru regularly gather at a cliff face in the Amazon basin to eat clay. So do other animals, including humans.
Through the power of Katrina, Sandy and, now, Harvey, we get a view into how a changing climate may play out in the real world — beyond arguments and abstractions, says astrophysicist Adam Frank.
"It's a mystery," said one health official. Italy was declared malaria-free in 1970. Officials will try to determine how and where the 4-year-old was infected.
A 20-square-mile blaze burned the historic Sperry Chalet in Glacier National Park last week. In California's Sierra National Forest, an ancient grove of sequoias was scorched, but the trees survived.
Sam Clovis has a doctorate in public administration, is skeptical that humans have a role in climate change and pushed theories suggesting former President Barack Obama was born in Kenya.