News
- Life
A salty tail
Just adding sodium can stimulate limb regrowth in tadpoles, a study finds, raising the possibility that human tissue might respond to relatively simple treatment.
- Health & Medicine
How the brain chooses sides
A new study reveals where and how people decide which hand to use for a simple task.
- Physics
Being single a real drag for spores
Launching thousands of gametes at once helps a fungus waft its offspring farther.
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- Climate
Annual Arctic ice minimum reached
Melt isn’t as bad as 2007, but still reaches number three in the record books.
