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AnimalsPicture This: The real ‘early bird’
Long before dinosaurs went extinct, birds were emerging on Earth. These hummingbird-size wading birds are the earliest known ancestors of today’s birds.
By Meghan Rosen -
ClimateCarbon dioxide levels rise fast and high
The buildup of carbon dioxide in the atmosphere is rising faster than at any time since dinosaurs roamed the Earth. The burning of fossil fuels is largely to blame.
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Health & MedicineTeens win big for pollution control and HIV detection
Ah-choo! The 2015 Intel ISEF competition’s top winner designed a way to curb germs on planes. Two other big winners invented ways to detect HIV early and to corral oil spills at sea.
By Sid Perkins -
AnimalsReturn of the bed bug
Bed bugs have staged a comeback over the past 15 years. The bloodsucking parasites succeeded through a combination of evolution and luck.
By Brooke Borel -
AnimalsScientists feed bed bugs (on purpose)
To study bed bugs in the lab, scientists had to first learn how to keep the blood-thirsty critters well fed. And that proved easier said than done.
By Brooke Borel -
AnimalsExplainer: Eek — what if you get bed bugs?
A bed bug infestation requires attention. Some treatments you can undertake yourself, but many are best left to professionals.
By Brooke Borel -
Animals4 reasons not to ignore signs of bed bugs
Here are important reasons not to ignore signs of bed bugs. Above all, an infestation carries real risks to your health and wellbeing.
By Brooke Borel -
Health & MedicineBones: Custom cushioning helps heal a bad break
If the stiff casts encasing broken limbs included an inflatable air bladder instead of a soft lining, costly and painful complications experienced by some patients during healing might be avoided, two teens reported at the 2015 Intel ISEF competition.
By Sid Perkins -
ClimateScientists ‘see’ thunder for first time
Scientists have captured the first image of thunder. The map shows the relative strengths of the sound waves emanating from the loud clap.
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AnimalsWhat’s the buzz? A new mosquito lure
Broadcasting a fake buzz can lure male Aedes aegypti mosquitoes away from females. That could reduce populations of these annoying — and disease-causing — insects, reports a teen at the 2015 Intel ISEF competition.
By Sid Perkins -
EarthMajor new quake rattles Nepal
A new earthquake struck Nepal on May 12. Its tremors were centered on a new region.
By Janet Raloff -
BrainBack off, bullies!
Mental health is another reason to stop bullies. Victims of bullying are more likely to develop anxiety problems than are victims of abuse or neglect, a new study finds.