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As the last Ice Age waned and the Holocene dawned, deep-ocean circulation around Antarctica underwent dramatic shifts that helped release long-stored carbon back into the atmosphere. Deep-sea sediments show that ancient Antarctic waters once trapped ...

Dolichospermum, a type of cyanobacteria thriving in Lake Erie's warming waters, has been identified as the surprising culprit behind the lake's dangerous saxitoxins--some of the most potent natural neurotoxins known. Using advanced genome sequencing, ...

Researchers have found a small but powerful switch inside breast cancer cells that helps them survive stressful conditions. When this switch flips, the cells activate protective programs that make them tougher and faster-growing. The finding reveals ...

Scientists have found that common foods can contain hidden contaminants formed during cooking or through environmental exposure. A new testing method called QuEChERS helps identify these chemicals more quickly and with greater ease. The research ...

Chimpanzees naturally ingest surprising amounts of alcohol from ripe, fermenting fruit. Careful measurements show that their typical fruit diet can equal one to two human drinks each day. This supports the idea that alcohol exposure is not a modern . ...

A high-speed "zap-and-freeze" method is giving scientists their clearest view yet of how brain cells send messages. By freezing tissue at the instant a signal fires, researchers revealed how synaptic vesicles behave in both mouse and human neurons. . ...

A large study of brain scans shows that our neural wiring evolves through five major stages from birth to late old age. These phases are separated by sudden turning points that mark big shifts in how the brain is organized. The most surprising ...

Two decades of satellite and GPS data show the Thwaites Eastern Ice Shelf slowly losing its grip on a crucial stabilizing point as fractures multiply and ice speeds up. Scientists warn this pattern could spread to other vulnerable Antarctic shelves.

Researchers exploring Bolivia's Great Tectonic Lakes discovered a landscape transformed over centuries by sophisticated engineering and diverse agricultural traditions. Excavations show how Indigenous societies adapted to dynamic wetlands through ...

A newly identified crocodile relative from Egypt pushes back the origins of the marine-hunting dyrosaurids by millions of years. The fossil, Wadisuchus kassabi, shows a mix of primitive and advanced traits that mark a key evolutionary transition. ...