Thirty feet long and weighing in at around 3,000 pounds, Yutyrannus huali goes by the nickname "beautiful feathered tyrant." Yutyrannus earned the name "tyrant" because it casually ripped its prey to pieces. But it was also a snappy dresser: The huge predator was covered in downy feathers.
A disease that has killed more than 5.5 million bats in the eastern United States and Canada is making its way west. White-nose syndrome has now been diagnosed in three Missouri bats — the first confirmed cases west of the Mississippi. And scientists say it won't stop there.
We're going to look now at an animal whose habitat is slowly disappearing. Polar bears live on sea ice. But Arctic sea ice, which used to stay frozen in the summertime, is now slowly disintegrating. This poses a unique challenge for scientists, government officials and others. How do you preserve the polar bear and prevent it from going extinct decades from now? Juliet Eilperin of The Washington Post has been reporting on this issue. And she joins us now to talk about what she's learned.