Life
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Health & Medicine
Bacteria that do logic
A team engineers microbes to perform AND, OR, NAND and NOR logic operations.
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Life
How Tiktaalik got its neck
The oldest fossil with a neck, Tiktaalik roseae, shows how animals developed a head for living on land.
By Susan Milius -
Humans
Bypassing paralyzed nerves
Implanted electrode helps paralyzed monkey clench its forearm muscles.
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Life
Grunting humans, moles scare earthworms
Science tackles the old mystery of why worm grunters who rub a stake in the ground can catch earthworms.
By Susan Milius -
Earth
Salinity sensors
Trace elements in the carbonate shells of freshwater mussels could serve as an archive of road salt pollution.
By Sid Perkins -
Health & Medicine
Body In Mind
Long thought the province of the abstract, cognition may actually evolve as physical experiences and actions ignite mental life.
By Bruce Bower -
Life
Parenthood: Male sharks need not apply
A second case of a virgin shark birth suggests some female sharks may be able to reproduce without males.
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Life
Climate warms, creatures head for the hills
Unusual data let scientists test predictions that global warming drives species up slopes.
By Susan Milius -
Life
Community of one
Scientists have discovered how a single bacterial species living in a gold mine in South Africa survives on its own. Its genome contains everything it needs to live independently.
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Paleontology
New arthropod species really stuck together
Recent fossil discovery shows that new species of arthropod formed chains, raising the possibility of communal behavior.
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Life
A better understanding of inherited breast cancer
New studies on a type of inherited breast cancer identify a key factor with different roles in different cancers.
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Earth
Pterodactyls may soar once more
Paleontologists and aeronautical engineers are designing a reconnaissance drone that will mimic the flight of an ancient flying reptile.
By Sid Perkins