Life
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AnimalsThese young inventors had to make like a crab
This year’s top challenge for Broadcom MASTERS finalists was to design and build a robotic arm based on a crab’s arm and claw.
By Sid Perkins -
AnimalsSpeckled dino spurs debate about ancient animals’ colors
Structures found in fossil dinosaur skin may give clues to the creatures’ colors and how they lived. But not all scientists agree on how to interpret what they see.
By Meghan Rosen -
Health & MedicineCould toothpaste give heart disease the brush-off?
Brushing with a toothpaste that dyes plaque green encourages people to remove more of it. This also lowered inflammation, which may cut someone’s risk of heart disease.
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AnimalsDino brain found ‘pickled’ in boggy swamp
Scientists claim to have identified the first fossil brain tissue from a dinosaur.
By Meghan Rosen -
BrainLying sets up a liar’s brain to lie more
As people lie more, activity in one brain region falls, a new study finds. It’s an area associated with emotion.
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BrainZika birth defects: Concerns spread from head to toe
Zika infections may trigger problems well beyond babies born with small heads and brains. Scientists have begun linking a range of head-to-toe health ails to the virus.
By Meghan Rosen -
AnimalsOur shocking eel story wins international prize
Roberta Kwok’s story on the shocking (and surprising) behaviors of electric eels was honored with a win for outstanding science writing.
By Janet Raloff -
GeneticsNew date for U.S. arrival of the AIDS virus
A new study shows that HIV started circulating at least a decade earlier than previously realized.
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Health & MedicineVaping may put your smile at risk
As e-cigarette use among teens rises, scientists find that vaping may cause cellular damage to the mouth, gums and teeth. Even the cells’ DNA was affected.
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GeneticsHuman DNA carries hints of unknown extinct ancestor
A new study suggests people today carry genetic traces of now-extinct species unknown to science.
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AnimalsSpidey sense: They can hear you!
Surprise! At least some spiders can hear us. Even without eardrums, jumping spiders can still detect airborne sounds from across the room.
By Susan Milius -
EarthBeaches can be a germy playground
Infectious microbes can flourish on sandy beaches. Scientists are now exploring how to find and monitor these hotspots for pollution that can make vacationers sick.