562 results
- Paleontology
Just a quick bite
Saber-toothed cats living in North America around 10,000 years ago had a much weaker bite than modern big cats.
- Physics
Decoding the Quantum Mystery
An essay by Tom Siegfried, SN's Editor in Chief, explores how signals from space to Earth could establish the reality of Einstein's worst fear.
- Planetary Science
Geyser gawker: Plans for a closer look at Enceladus
The Cassini spacecraft will change course to take a close look next March at plumes of water vapor emanating from the south pole of Saturn's moon Enceladus.
- Humans
From the December 4, 1937, issue
The perfect beauty of frost rime, the sun's surprising influence on earth, and digging up evidence of ancient domestic cats.
- Animals
Bite This: Borrowed toad toxins save snake’s neck
An Asian snake gets toxins by salvaging them from the poisonous toads it eats.
- Health & Medicine
Sick and down
To fight off an infection or illness, the body shifts into a slow-down mode that mirrors some symptoms of depression. In fact, scientists now think the immune response itself may even cause the mood disorder.
- Earth
Invasive, Indeed
Some people may live lightly on the land, but the demands of the world's population as a whole consume nearly a quarter of Earth's total biological productivity.
- Animals
New Butterfly: High-alpine species from low-life parents
Little bluish butterflies high in the Sierra Nevada could be one of the few animal species to have arisen from crossbreeding of two other species.
- Animals
Why Play Dead?
Common wisdom dictates that playing dead discourages predators, but researchers are now thinking harder about how, or whether, that strategy really works.
- Planetary Science
Enceladus: Small but feisty
Close-up observations of Saturn's tiny moon Enceladus reveal that its south pole is hotter than its equator and that the icy satellite continues to undergo eruptions.
- Planetary Science
Moon spray
The Cassini spacecraft has found conclusive evidence that the south pole of Saturn's moon Enceladus spews jets of icy particles into space.
- Humans
Nobel prizes recognize things great and small
The 2006 Nobel prizes in the sciences were announced this week, and all five winners are U.S. scientists.
