Animals
Animals’ personalities can affect a species’ survival
From bold foxes to shy parrots, animals’ personalities are increasingly being seen as key to saving species.
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Health & Medicine
Scientists Say: Symptom
A runny nose, fever or feeling of fatigue might clue your doctor in to the right diagnosis.
Explainers
Chemistry
Explainer: What is chirality?
Chiral molecules are mirror images of each other. They might not seem all that different — but can have drastically different effects in medicine, materials and more.
Experiments
Earth
Experiment: How does the tilt of Earth’s axis affect the seasons?
Seasons have nothing to do with Earth’s distance from the sun. The real reason for the seasons is the tilt of Earth’s axis.
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Winter Olympics 2026
Watch This
As winters warm, athletes must cope with harder snow and tricky ice
Ice arenas and artificial snow now dominate the winter Olympics. Athletes there — and everywhere — may need to adjust how they train and perform.
