A new method using stem cells could make for much better bone grafts, researchers report. They could help patients avoid pain or even additional surgery.

A new kind of bioink shows promise for bioprinting patient-specific bone grafts, or other body parts like ears, blood vessels, or cartilage.

"Neandertals knew that for a specific task, they needed a very particular tool. They found what worked best and sought it out when it was available."

Scientists used a measure of lingering radioactivity from nuclear explosions to estimate the age of whale sharks, an endangered species.

Beneath their slick skin, some frog skulls sport spines, spikes, and other skeletal secrets called hyperossification.

Our teeth record experiences like reproduction and incarceration from the time they appear until death, research finds.

Just the right amount of vitamin D, around 800 IU daily, can help senior citizens get back on their feet after hip fracture surgery.

Just the right amount of vitamin D, around 800 IU daily, can help senior citizens get back on their feet after hip fracture surgery.

People with diabetes have a higher risk of broken bones, and may need longer to heal. A drug grown on lettuce could speed things up.

Scientists thought bone healing was the domain of skeletal stem cells, but another kind of cell steps up after an injury, research in mice shows.