On Today's Podcast
How yawning might help clear dirty fluid from the brain
Research shows yawning might help clear waste from our brains. Plus, breaking down a CDC report on how little sleep Americans are getting.
Listen NowMay 15, 2026
In the microgravity of space, tumors can triple in size in just 10 days. That could be a boon for cancer research, and a risk for astronauts. Plus, why are appliances playing elaborate tunes, and where do they come from? And, beavers and humans tend to clash over landscape management. Pixar's “Hoppers” captures the struggle, and Oregon proves coexistence is possible.
Go West, Young Man, and Grow Up With the Dinosaurs
A writer follows a childhood passion, surrounding herself with dinosaurania, in this excerpt from “My Beloved Brontosaurus.”
Every Spring, This Bird Struts its Stuff
Across Utah, the Greater sage-grouse performs a striking dance routine each morning at dawn.
These Dinosaurs Should Appear in Jurassic Park 4
Author and dino-lover Riley Black suggests several reptilian relics that deserve the spotlight.
Why Do I Get Nostalgic?
That bittersweet longing for the past can have an important impact on the present.
12:16
Red Meat’s Heart Risk Goes Beyond the Fat
A chemical in red meat, L-carnitine, may increase the risk of heart disease in people and mice.
28:17
Down the Gullet: A Guided Tour of Your Guts
In Gulp., science writer Mary Roach travels through the intestines–and out the other end.
6:16
Poring Over The Science Of Coffee
Harold McGee explains the chemistry in your cup of joe.
11:53
Looking to Nature for Antibiotic Inspirations
Microbiologists are learning bacteria-killing tricks by studying phage viruses.
12:40
The Teenage ‘Troublemaker’ Fighting for Science
Zack Kopplin is campaigning to keep creationism off the science class syllabus.
20:38
Monitoring the Monarchs
Monarch expert Lincoln Brower discusses the decline in monarch butterfly populations.
Concocting The Perfect Cup Of Coffee
Brew-masters pore over the chemistry and craft of making a good cup of joe.
Mapping the Monarchs
Any orange-and-black beauties in your neck of the woods? Add a photo to our Spring Monarch Migration 2013 Google map.
The Story of Saliva
Why do newborns drool excessively? How many pints of saliva does a person generate daily? (Hint, it’s more than one.) And more spit mysteries excerpted from “Gulp: Adventures Down the Alimentary Canal.”
Will There Be Another Ice Age?
If carbon dioxide levels continue to rise, we likely have a long thaw ahead of us.
Milkweed for Monarchs
People can help monarch butterflies by planting milkweed, a plant the insects rely on for breeding and feeding.
What Scared the Fearless Woman?
Patients once considered insensitive to fear can experience the sensation in response to internal triggers, a new study shows.
What’s in a Label?
A new book looks at how the way we think and behave can be shaped by forces we aren’t aware of.
9:55
Tracking a Rise in ADHD Diagnosis
Researchers work to understand what might be behind a surge in diagnoses of attention deficit hyperactivity disorder.
23:32
‘Drunk Tank Pink’ Finds Clues to Behavior
In his new book, Adam Alter examines the way labels, symbols, and colors can affect human behavior.
7:32
President Obama Calls for a ‘BRAIN Initiative’
NIH Director Francis Collins discusses President Obama’s new ‘BRAIN Initiative’ research program.