Life
Research without lab animals? New tech is making it possible
For decades, scientists have worked to phase out the use of animals in research. AI, ālungsā on a chip and more are bringing that goal closer.
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Chemistry
Scientists Say: Chiral
Many biological molecules come in a left- and right-handed form ā and biology plays favorites.
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Chemistry
Experiment: Blow the best homemade bubbles
Whatās the best recipe for blowing the most impressive bubbles? Letās find out.
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Health & Medicine
Explainer: What is cancer?
Cancer is a whole collection of diseases with one thing in common: all develop when the bodyās cells start dividing out of control.
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Narwhals may use their enormous lance-like tusks to play
Video shows narwhals using their tusks to prod ā even flip ā fish they donāt target as prey. Itās the first reported evidence of these whales playing.
