Uncategorized
- Humans
Early Americans took two tool tracks
Creators of separate spearhead styles colonized North America more than 13,000 years ago.
By Bruce Bower - Health & Medicine
Proliferation protein goes rogue in lung cancer
Rac1b might promote malignancy, could be a target for treatment.
By Nathan Seppa - Health & Medicine
Memories clutter brain in amnesia
Complex patterns slow down object recognition in patients with disorder.
- Earth
Warming indicted for extreme weather
Climate change can explain some 2011 departures from the norm.
By Janet Raloff - Astronomy
Hubble spots fifth Pluto moon
Space telescope’s discovery announced on Twitter.
By Nadia Drake - Space
Moon patterns explained
Electric fields enveloping magnetic bubbles may form mysterious lunar swirls.
By Meghan Rosen - Life
Young flies cannibalize the plump
An evolutionary biologist’s modest proposal shocks colleagues who thought they knew everything about their favorite laboratory organism.
By Susan Milius - Paleontology
Not your typical pterosaur
A beautifully preserved fossil from Germany displays a wing unlike any ever seen.
By Janet Raloff - Life
Trout nose cells follow magnetic fields
Iron-rich tissue may be at root of a biological compass.
By Devin Powell - Life
Egg production after birth questioned
A study finds no evidence of stem cells in adult mouse ovaries, suggesting female mammals really are born with all the gametes they’ll ever have.
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- Microbes
Killing with the flip of a switch
A single genetic transformation turns mild-mannered bacteria into assassins.