January 30, 2026

A flu variant called subclade K emerged too late to be fully covered by this year’s vaccine. But the flu shot can still help protect you. Plus, a new study suggests dogs began to diversify about 11,000 years earlier than we thought. And, in turbulent times, it helps to hear stories of resilience. What can we learn from 3.5 billion-year-old bacteria that eat light?

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