Uncategorized
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- Anthropology
Agriculture’s roots spread east to Iran
Dig supports prolonged development of domesticated crops at ancient sites across the Fertile Crescent.
- Health & Medicine
People may have evolved to fight cholera
People in Bangladesh have genetic variations that might defend against the disease.
- Life
Lab-grown liver raises hopes but draws criticism
Though human cells spontaneously group into rudimentary organs, some scientists say work is very preliminary.
- Life
Deadly flu virus flourishes in lung cells
H7N9 influenza's clinging ability in humans and birds raises concerns about increased transmission between species.
- Animals
Hawkmoths squeak their genitals at threatening bats
Sounds of an approaching predator inspire ultrasonic rasping in insect prey.
- Physics
Particles defy gravity, float upstream
Inspired by tea leaves’ reverse route into a kettle, physicists demonstrate that water’s surface tension allows unexpected movement.
- Animals
Highlights from the Evolution 2013 meeting
Selections from the meeting include a natural fish experiment, terrapins' light displays and why a variety of eye colors persist in people, presented June 21-25 in Snowbird, Utah.
- Animals
Gut microbes may put barrier between species
Wiping out gut bacteria in wasps saves crossbred offspring from death, suggesting that microbes may play a role in speciation.
- Animals
Honeybees use right antennae to tell friend from foe
Asymmetry in sense of smell alters insects' behavior in lab tests.
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- Quantum Physics
Most precise clock
It would take more than 50 billion years for a new atomic clock to gain or lose a second.
