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LifeTickling apes reveals laughter’s origins
Roots of laughter go back at least 10 to 16 million years, study of romping apes suggests.
By Susan Milius -
PhysicsMechanical systems all tangled up
Researchers link the motion of two ion pairs through “spooky action at a distance.”
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Alpine Antarctica, before the ice
A new survey may have unveiled the birthplace of the world’s largest ice sheet.
By Sid Perkins -
Health & MedicineNicotine’s role in SIDS
New study in rats explains how smoke exposure may increase risk of sudden infant death syndrome.
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LifeNo rest for weary fruit flies
Fruit flies with insomnia may help researchers track genetic factors that lead to the sleep disorder.