All Stories
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AnimalsAlligators eat sharks — and a whole lot more
Alligators aren’t just freshwater creatures. They swim to salty waters and back, munching on plenty of foods along the way.
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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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PaleontologyWhat male bias in the mammoth fossil record says about the animal’s social groups
Male woolly mammoths were more often caught in natural traps that preserved their remains, DNA evidence suggests.
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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.
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AnimalsGreat praise for categories, and seeing beyond them
Acting Editor in Chief Elizabeth Quill discusses classification and some of the challenges of putting species in categorical boxes.
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Health & MedicineReaders intrigued by ancient animals’ bones
Readers had questions about gut bacteria, woolly rhino ribs and ancient horses hooves.