Researchers in Australia found that when they removed mistletoe from large sections of forests, vast numbers of birds left. BSIP/UIG via Getty Images hide caption

toggle caption BSIP/UIG via Getty Images

Birds Hang Around Mistletoe For More Than A Kiss

  • Download
  • <iframe src="https://www.npr.org/player/embed/168147882/168153236" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

A recent study in the British Medical Journal concludes that Rudolph's nose is red "due to the presence of a highly dense and rich nasal microcirculation." Ann Johansson/Corbis hide caption

toggle caption Ann Johansson/Corbis

Study: Red Noses Help Reindeers Cope With Polar Air

  • Download
  • <iframe src="https://www.npr.org/player/embed/168031862/168036581" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Birding for the Holidays

  • Download
  • <iframe src="https://www.npr.org/player/embed/167798230/167798219" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Future Fibers May Be Spun From Slime

  • Download
  • <iframe src="https://www.npr.org/player/embed/167802341/167798223" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Chimpanzees check out a termite mound at the Chimp Haven sanctuary in Louisiana. Chimp Haven hide caption

toggle caption Chimp Haven

Christmas Comes Early At Australia's Taronga Zoo

  • Download
  • <iframe src="https://www.npr.org/player/embed/167517444/167517491" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

For centuries, Russians believed putting a brown frog in their milk would keep it fresh. Now scientists are finding chemicals in the frog's slimy goo that inhibit the growth of bacteria and fungi. Stefan Arendt/Corbis hide caption

toggle caption Stefan Arendt/Corbis

Researchers used this inflatable tree raft that sits atop the forest canopy to help them collect almost 130,000 arthropod specimens from a section of Panamanian rainforest about the size of a football field. Courtesy of Noui Baiben hide caption

toggle caption Courtesy of Noui Baiben

Counting Bugs In Panama? Get Out Your Tree Raft

  • Download
  • <iframe src="https://www.npr.org/player/embed/167163274/167230696" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

The Lamar Canyon pack's alpha female (right) was shot and killed by a hunter on Dec. 6. Courtesy of Doug McLaughlin hide caption

toggle caption Courtesy of Doug McLaughlin

Scientists Mourn Popular Wolf Shot By A Hunter

  • Download
  • <iframe src="https://www.npr.org/player/embed/167024477/167029315" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Apatosaurus (right, opposite a Diplodocus skeleton at the Carnegie Museum of Natural History in Pittsburgh), is what paleontologist Othniel Charles Marsh actually found when he thought he'd discovered the Brontosaurus. Joshua Franzos/Carnegie Museum of Natural History hide caption

toggle caption Joshua Franzos/Carnegie Museum of Natural History

Forget Extinct: The Brontosaurus Never Even Existed

  • Download
  • <iframe src="https://www.npr.org/player/embed/166665795/166838631" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Blue Whale Barrel Roll Caught On Camera

  • Download
  • <iframe src="https://www.npr.org/player/embed/166736406/166736395" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Puppies May Help Students Ace Finals

  • Download
  • <iframe src="https://www.npr.org/player/embed/166470837/166467859" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

A stray cat rests at the Torre Argentina ruins in Rome in October. Officials say a cat shelter that sits adjacent to the site must be shut down. Filippo Monteforte/AFP/Getty Images hide caption

toggle caption Filippo Monteforte/AFP/Getty Images

Cat Fight In Rome: Beloved Shelter Faces Closure

  • Download
  • <iframe src="https://www.npr.org/player/embed/166067815/166464823" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript