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EcosystemsInvasive species are a growing global threat
'The Aliens Among Us' describes how invasive species are colonizing — and disrupting — ecosystems worldwide.
By Sid Perkins -
ClimateHumans are driving climate change, federal scientists say
Human influence “extremely likely” to be dominant cause of warming in last 70 years, U.S. climate report finds.
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AnimalsHere’s why some water striders have fans on their legs
A fan of tiny, elegant plumes on their legs helps certain water striders dash across flowing water without getting wet.
By Susan Milius -
Health & MedicineArtificial insulin-releasing cells may make it easier to manage diabetes
Synthetic cells crafted in the lab could provide a more precise, longer-lasting diabetes treatment.
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Planetary ScienceSee a new mosaic of images of comet 67P from the Rosetta mission
A montage of images taken by the Rosetta spacecraft and its lander, Philae, recap the daring mission to comet 67P.
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AnimalsLeafhoppers use tiny light-absorbing balls to conceal their eggs
Leafhoppers produce microscopic balls that absorb light rather than reflect it and help camouflage the insects’ eggs.
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AnimalsNo more than 800 orangutans from this newly identified species remain
Endangered population of orangutans is the oldest surviving red ape lineage, a new study finds.
By Bruce Bower -
AnimalsAnts were among the world’s first farmers
50 years ago, researchers began unraveling the secrets to Attine ants’ green thumbs.
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ArchaeologyMystery void is discovered in the Great Pyramid of Giza
High-energy particle imaging helps scientists peek inside one of the world’s oldest, largest monuments.
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EarthDino-dooming asteroid impact created a chilling sulfur cloud
The Chicxulub impact spewed more sulfur than previously believed.
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EarthWind may be driving the melting of East Antarctica’s largest glacier
Winds may be helping warm ocean waters speed up the melting of East Antarctica’s largest glacier.
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AstronomyThe way hungry young stars suck in food keeps most X-rays in, too
The columns of plasma that feed growing stars develop an extra layer that keeps X-rays in.