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News
Northern spotted owls have disappeared from large parts of their range
1+ hour, 9+ min ago (1017+ words) Northern spotted owls are disappearing across the Pacific Northwest as breeding pairs fall to dangerously low regional levels. A forest can look healthy even when one of its animals is close to disappearing. That is happening to northern spotted owls…...
Still air can make extreme dry heat more dangerous
3+ hour, 12+ min ago (1299+ words) In hot, dry, still air, vapor from sweaty skin stalls the airflow that cools the body, cutting sweat evaporation by more than half. People get out of the sun by stepping under a canopy or into a half-finished building. The…...
Most city parks are missing a vital layer that supports wildlife and people
2+ hour ago (844+ words) City parks could do far more for people and wildlife by rethinking a familiar design feature that has shaped green spaces for generations. Most city parks look the same. Tall trees overhead, a stretch of mown grass below, and not…...
Grassland birds are vanishing from some of the best protected prairies
2+ hour, 56+ min ago (960+ words) Grassland birds are declining even in some of America’s best protected prairies, as habitat loss and changing weather add pressure. Protected areas are meant to give wildlife a safe place when natural habitat disappears. But lines on a map cannot…...
British zoos overlook conservation close to home
5+ hour, 6+ min ago (970+ words) British zoos hold 106,000 animals, and just 9% are native species, with only 2% on any UK conservation priority list. Zoo signs talk about saving species from extinction, and most visitors have little reason to question that claim. Across British and Irish collections,…...
After a heart attack, capillaries may help the heart grow its own bypass
12+ hour, 2+ min ago (1046+ words) The heart can create new routes for blood around blocked arteries. Researchers traced how these natural bypasses form in mice. A blocked coronary artery starves the muscle downstream of oxygen, and the heart’s answer is to grow a detour around…...
Wildfires send arsenic into rivers long after the flames are gone
11+ hour, 46+ min ago (998+ words) Arsenic rose in creeks after wildfires in nearly every study reviewed, and the highest water readings came from ground below an old mine. When a wildfire burns through, what people see is smoke, ash, and the damage left behind. What…...
Melting glaciers are changing how diseases move between bees
16+ hour, 7+ min ago (731+ words) As Alpine glaciers retreat, new vegetation could change which flowers bees visit and how they encounter pathogens. Melting glaciers are reshaping more than mountain landscapes. New research from the Swiss Alps suggests that the vegetation emerging in their wake could…...
Connecting across generations changes how two brains interact
14+ hour, 48+ min ago (1218+ words) A new study tracked younger and older strangers as they grew closer over six weeks, uncovering an unexpected pattern in their brain activity. Doctors increasingly prescribe company. In practice that means a class, a choir, or an art group that…...
Plants warn their neighbors of danger, but only some understand the message
18+ hour, 30+ min ago (1056+ words) Plant communication runs on scent: a new study finds plants understand warning signals best when their chemical blends match the sender's. Damaged plants release chemical warnings that help neighboring plants prepare for incoming pests. Because related species share similar chemical…...