News
- Life
Fossil helps document shift from sea to land
New fossils of an ancient, four-limbed creature help fill in the blanks of the evolutionary transition between fish and the first land-adapted vertebrates.
- Astronomy
Impact may have transformed Mars
Three teams suggest that a huge object slammed into Mars, giving the planet an unusually dualistic topography.
- Plants
Move it or lose it
Climate change may have dire consequences for California’s native plants, which may need to take refuge in some the areas under pressure for development.
- Animals
Don’t blame the guys
Scientists take a new look at what drives female damselflies to look like males.
- Earth
Resonating with the ocean
An experiment may explain the origin of underwater waves that shape the sediment of continental slopes.
- Health & Medicine
Ch-ch-ch-changes
Epigenetic shifts continue throughout a person’s lifetime, and the overall pattern of these shifts appears similar within families.
- Space
Safe from black holes
The Large Hadron Collider could generate black holes, but they would be too tiny and short-lived to do any harm and would be no more malevolent than the cosmic rays constantly bombarding Earth, two new reports find.
- Health & Medicine
Heel test
A simple, inexpensive ultrasound test of the heel might reveal whether a person is at risk of osteoporosis and should get more extensive tests.
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- Health & Medicine
Curative leaf
Compound in marijuana reduces inflammation without the psychological effects.
- Health & Medicine
Pain, numbness, pain
Some anesthetics not only cause a burning feeling when they're given, but can also increase the pain felt after surgery.
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