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Some tropical trees have evolved a clever way to survive drought by taking in carbon dioxide at night, allowing them to keep their pores closed during the hot daytime and conserve water. By comparing three Clusia species, researchers discovered that ...

The Arctic sea ice melt season is roughly 40 days longer than it was in 1979, yet its rapid expansion unexpectedly leveled off around 2010. Scientists say changing clouds and increasingly thin ice may explain the pause, but continued Arctic warming . ...

Scandinavian museums are trying to move beyond the familiar image of Vikings as sword-wielding male warriors, highlighting women, farmers, traders, and a far more complicated society. But the enduring popularity of the Viking myth means exhibitions . ...

Stonehenge's six-ton Altar Stone may have been carried from Scotland to Dogger Bank by glaciers before prehistoric people transported it hundreds of kilometers to Salisbury Plain. The possible multistage journey suggests remarkable organization and . ...

Scientists have found strong observational evidence that a key part of the Atlantic Meridional Overturning Circulation has been weakening across a wide stretch of ocean for nearly two decades. The slowdown could eventually reshape weather patterns, . ...

Lake Powell has fallen to its lowest level on record after an exceptionally dry and warm winter left the Colorado River Basin with little mountain snow to melt. Lake Mead also reached record lows, raising concerns for a river system that supplies ...

Researchers observed a humpback whale mother staying beside her presumed stillborn calf for hours and possibly days off Australia's Gold Coast. She maintained eye contact and remained close to the calf in behavior resembling caregiving and nurturing. ...

Researchers have created a concrete mixture that is both stronger and capable of absorbing carbon dioxide. The best formula, combining zeolite with bamboo biochar, boosted compressive strength by 7.48% and tensile strength by 15% compared with ...

An amateur astronomer searching satellite maps for a Quebec camping spot accidentally discovered a massive ancient impact crater. Scientists later found shatter cones that confirmed the 25-kilometer-wide structure was blasted into Earth roughly 390 . ...

A Yellowstone super-eruption would begin not with a sudden surprise, but with weeks of increasingly alarming warning signs such as migrating earthquake swarms, rapid ground uplift, changing geysers, and rising volcanic gases. In a worst-case scenario ...