8,095 results
- Animals
Grizzly bears get stressed from salmon decline
Grizzlies in coastal British Columbia bulk up on salmon in the fall, but they experience stress when the fish are scarce.
- Animals
How an octopus keeps itself out of a tangle
The suckers on an octopus stick to just about anything, except the octopus itself. Scientists think they’ve figured out why.
- Archaeology
Feedback
Readers ask questions about a study on sweeteners, how scientists recognize primitive tools and the purpose of a dinosaur's sail.
- Life
Vitamin A deficit in the womb hurts immune development
Mice deprived of vitamin A in utero grow up with undersized immune organs.
- Science & Society
Spiny media battle highlights importance of scientific credit
Media coverage of research on invasive lionfish tolerating brackish water brought up issues of attribution and recognition in science.
- Health & Medicine
New tests screen for lethal prion disease
Urine and nasal swabs can detect small amounts of the abnormal prions that cause Creutzfeldt-Jakob disease.
- Oceans
Unknowns linger for sea mining
Scientists struggle to predict underwater digs’ effects on sea life.
- Paleontology
Fossils suggest ancient sharks survived extinction event
Diving down deep in the ocean may have helped the fish live through the Great Dying 350 million years ago.
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- Life
Some animals eat their moms, and other cannibalism facts
A new book surveys those who eat their own kind, revealing some surprises about who’s eating whom.
- Humans
Bigger numbers, not better brains, smarten human cultures
An experiment using a computer game supports the idea that big populations drove the evolution of complex human cultures.
