Our planet is facing a mass extinction crisis. By the end of the century, we could lose up to half of all living species. But people are working hard to save endangered species and habitats, and a few scientists are even trying to bring lost species - like passenger pigeons and woolly mammoths - back to life.
Could we actually clone a mammoth? Yes and no, says biologist Beth Shapiro--a pioneer in the new science of de-extinction. She takes us behind the scenes to examine the science and ethics of resurrecting extinct species.
Coral reefs and many of the oceans' marvels may disappear before this century ends, according to a new scientific study. Science writer Elizabeth Kolbert says we're facing the sixth great extinction. She tells stories from the front lines of the fight against extinction, from Panama to Australia's Great Barrier Reef.
Doug Peacock is a legend in wilderness circles. A friend of Edward Abbey, Peacock was a Vietnam vet so traumatized by the war that he escaped into the wilderness once he returned to America. He says grizzlies saved his life.
Are you planning a winter getaway? Are you headed to a quiet beach, or somewhere more adventurous? In this hour, we talk with writers, philosophers and veteran itinerants about hitting the road. Plus, a look at New York's High Line, more than five years into its reinvention.
Travel writer Tony Perrotet has spent his career traveling all over the globe, but he skipped the Mediterranean tour, choosing Tierra del Fuego or the Amazon over Rome. But the discovery of an ancient guide book launched him on his most exotic journey yet, in the footsteps of the Ancients.
Some of the greatest trips give us that feeling of traveling back in time. Last summer, Aubrey Ralph did nearly that, when he spent nine days sailing aboard a 200 year old tall ship, across two Great Lakes. He was with the reconstructed U.S. Brig Niagara as she shoved off from her home port in Erie, PA.
Have you been to the High Line yet? It’s one of Manhattan's newest parks. In the summer, it's full of sunbathers, lush plantings and strolling locals. It’s also about 30 feet above the ground, built on the bed of an old elevated train line. Writer Annik LaFarge talks about the park, five years into its reinvention.