A newly identified wrist bone in two non-avian dinosaurs has challenged long-held assumptions about the evolution of flight.

Newly uncovered wooden tools from Pleistocene China reveal complex, plant-focused technology far earlier than expected in East Asia. Researchers working at the Pleistocene-era Gantangqing site in ...

An analysis of two theropod dinosaur fossils has shown that they had a type of carpal bone (pisiform) in their wrists—a bone considered important to flight in birds.

The human body is a machine whose many parts—from the microscopic details of our cells to our limbs, eyes, liver and brain—have been assembled in fits and starts over the 4 billion years of our ...

Ulna and Radius Fractures: What You Need to Know The forearm is made up of two bones, the ulna and the radius. A forearm fracture can occur in one or both of the forearm bones. Some of the causes ...

It is not known how neural circuits in the primate brain assess the quality of perceptual decisions. Here, we test two hypotheses. First, that decision confidence is related to the structure of ...

Infectious disease research is the most common use of nonhuman primates at the National Institutes of Health (NIH). Animal experiments, including those involving monkeys, often fail to accurately ...

Archaeologists have uncovered evidence that ancient Romans consumed songbirds as everyday street food, challenging long-held beliefs that these delicacies were reserved for elite banquets. The ...

Newly released bodycam footage shows the harrowing moments after a shark nearly bit the hand off of a 9-year-old girl who was snorkeling off the coast of Florida.

Surgeons had spent years preparing for the surgery, with hours-long training sessions to practice each step of the procedure. The procedure entails connecting nerves, blood vessels, veins, bone, and ...

Skeletal bone age assessment is a common clinical practice to investigate endocrinology, and genetic and growth disorders of children. However, clinical interpretation and bone age analyses are ...

The women of Greece’s oldest civilization wove fabrics, carried weapons and wept over their lost children.