Few wildlife events are as disturbing as a whale stranding. An animal exquisitely adapted to life in deep water suddenly lies helpless on a beach, sometimes alone and sometimes alongside dozens or even hundreds of members of its group. The...
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Imagine two identical buildings on the same street. One has a broken window that is repaired the next morning. The other has a broken window that remains shattered for weeks. Graffiti appear...
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You open a social-media app to check one headline. A war update leads to a natural disaster, which leads to political outrage, an economic warning and a frightening health story. Twenty minu...
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For decades, coffee has occupied an awkward place in conversations about heart health. It contains caffeine, a stimulant that can temporarily raise blood pressure and make some people feel t...
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There is ordinary tiredness—the heavy-eyed feeling after a late night, a long flight or an exhausting week—and then there is the more puzzling question: Why am I tired all the time? You slee...
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Few English words have traveled as far politically as “woke.” Depending on who says it, the word can mean alert to racial injustice, broadly progressive, excessively politically correct, per...
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“Why does my stomach hurt?” sounds like a simple question, but medically it is one of the broadest questions a person can ask. What we casually call the stomach is often the entire abdomen,...
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There is a point in an Arctic winter when ordinary ideas about daytime stop being useful. The sun may skim the horizon without properly rising, snow can turn blue in the long twilight, and a...
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Taste a drop of seawater and the answer seems obvious: the ocean contains salt. The more interesting question is how it got there. There are no gigantic salt deposits steadily dissolving int...
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Step out of a dark cinema into brilliant afternoon sunlight and, for some people, the reaction is immediate. The eyes narrow, the nose begins to tingle and within seconds comes an involuntar...
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