Podcast
Mysteries of nature: Why do some leaves turn red in the fall? Global warming and the future of rivers. And the music of DNA.
Autumn Color
Fall colors come in several shades. But why the different colors?
Future River Flow
Climate change may alter how rivers flow in the future, and man-made dams could make things worse.
Podcast
A snail hides in plain sight. A high-speed continental collision. And what fossils tell us about future extinctions.
Hot Extinctions
Warmer temperatures have consistently preceded more extinctions throughout Earth's history.
Woolly DNA
Woolly mammoths went extinct thousands of years ago. But now their genetic past is being resurrected through new DNA techniques.
Life Origins Roundup
A new study suggests that scientists looking for extraterrestrial life should look in interstellar space clouds, made of hydrogen cyanide gas.
Podcast
Whale-inspired windmills. Tracing the origins of a killer asteroid. Using vowels to sell. And more.
Whale Energy
The shape of humpback whale flippers could make wind energy more efficient.
Podcast
Ice that won't melt. Finches driven to cheat. How music effects the brain. Increased carbon dioxide produces super weeds.
HPV and cancer in men.
Shrubs and CO2
Carbon dioxide emissions can help shrub weeds at the expense of grasslands.
Podcast
Why the flu strikes in winter. The genetic code of one species found inside another's. Salamanders that are too fat to be eaten by predators. Why some of us have perfect pitch and others fall flat. And the effects of pastries on blood sugar.
Podcast
Counting underwater volcanoes. A new source of antibiotics. Which trees are better at fighting global warming. The power of repeating yourself. And crows that use tools to get food. video
Underwater Volcanoes
A new count reveals hundreds of thousands of undersea volcanoes.
Tree Carbon
A listener asks: Which trees are more effective at removing carbon dioxide from the atmosphere, conifers or deciduous trees?
Podcast
A computer with a sense of humor. Frisky foxes. Giant insects of the ancient earth. And more.
Podcast
Diet foods could make kids fat, the incompatibility of ape and human blood, the secrets of fingerprints, all about the jet streams, and how the United States can better conserve its topsoil.
Podcast
Sparrows that prefer up-to-date songs, glaciers and global warming, upwardly mobile robots, bacteria to combat oil spills, and how self-tanners work.
Glacier Ice Melt
We hear a lot about the melting polar ice sheets. But smaller ice caps may actually pose an even bigger problem.
Self Tanners
A listener asks: Do self-tanners give you the same tan as the sun?
Ocean Bubbles
Bubbles play an important role in the exchange of gas between the ocean and the air.