New study of 7-million-year-old fossils from Chad proves Sahelanthropus tchadensis walked upright while still climbing trees.

Ancient DNA reveals that childhood viruses lived with humans for thousands of years, reshaping how we understand human and ...

Scientists photograph the elusive ginkgo-toothed beaked whale, the source of the BW43 echolocation pulse, for the first time.

New research shows that reducing overfishing could help coral reefs produce more fish and support food security in many ...

What seemed like new planets around Fomalhaut were actually expanding dust clouds from violent planetary collisions seen by Hubble.

Tramadol is widely prescribed for chronic pain, but a new review suggests the relief is modest and the risks may be greater than many realize.

“Changes in circadian rhythms happen with aging, and evidence suggests that circadian rhythm disturbances may be a risk factor for neurodegenerative diseases like dementia,” said Dr. Wang.

NASA’s Mars rover finds organic signals in mudstone that resemble microbial activity, sparking new debate over life on the ...

January brings a bright supermoon and a fast meteor shower at the same time. Here is what to watch for and how to enjoy the ...

Museum fossils in England reveal 200-million-year-old coelacanths, fish that swam alongside the first dinosaurs ...

Bone-eating zombie worms vanished from Pacific canyons during a 10-year study, raising concerns that oxygen loss is altering ...

Humans ferried pigs across thousands of Pacific islands for millennia, reshaping ecosystems and blurring the line between ...