90.2

90.2

Q&A: Why Do Killer Whales Go Through Menopause?

Why do some species, including humans and killer whales, stop reproducing long before the end of their lives? A new study from Exeter University suggests that older females may gain adaptive advantages by helping to raise their daughters’ calves instead of raising their own.

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Unraveling the Chemistry of the Tightest Knot Yet

Knots have proven useful since the dawn of mankind. Drawing on this as inspiration, Professor David A. Leigh, along with his team at the University of Manchester’s School of Chemistry, synthesized the most complex chemical knot yet, and believe that it holds many promising applications.

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90.2

Book Review: Black Hole Blues

In Black Hole Blues, Janna Levin, eminent astrophysicist, describes the decades-long project to detect gravitational waves and prove Einstein’s theories of general relativity.

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What Woodpeckers Can Teach Us

A computer program, designed to teach users to differentiate between kinds of woodpeckers, attracted the attention of the Defense Advanced Research Projects Agency for its power to improve teaching technology. Assistant Professor Amin Karbasi has been awarded for his promising research.

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Unlikely Friendships: Gut Bacteria Edition

Researchers study the guts of insects to uncover how a symbiotic microbe develops a part of the tsetse fly’s immune system. This finding raises the importance of understanding the role of bacterial species in the human microbiome.

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