News
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AnimalsThe mere sight of illness may kick-start a canary’s immune system
Healthy canaries ramp up their immune systems when exposed to visibly sick birds, without actually being infected themselves.
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PhysicsAuroras form when electrons from space ride waves in Earth’s magnetic field
New lab results confirm that auroras are triggered by disturbances in Earth’s magnetic field called Alfvén waves.
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Health & MedicineFDA approved a new Alzheimer’s drug despite controversy over whether it works
A new Alzheimer's treatment slows progression of the disease, the drug’s developers say. But some researchers question its effectiveness.
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Health & MedicineFood that boosts gut microbes could be a new way to help malnourished kids
Malnourished children in Bangladesh fed a food aimed at restoring gut health grew more than those who got a traditional high-calorie supplement.