Uncategorized
- Life
These snails give live birth, and it’s the babies that may do the labor
Protecting eggs in mom’s body may have given rough periwinkle snails an advantage over egg-laying cousins, letting them spread to far more coastline.
- Life
Megalodon, the largest shark ever, may have been a long, slender giant
The ancient shark is typically imagined with the scaled-up stout frame of a modern great white. But in life, the giant may have been more elongated.
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What a parrot knows, and what a chatbot doesn’t
Editor in chief Nancy Shute discusses AI chatbots' vulnerabilities and the intelligence of parrots.
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- Physics
50 years ago, timekeepers deployed the newly invented leap second
After more than 50 years, metrologists will stop using the leap second to align the time kept by atomic clocks with the rate of Earth’s spin.
