Collagen inside ankles has more turnover than that in hips, thanks to the action of microRNAs.

Scientists have manipulated the electrical signals that help guide flatworms in regenerating their body parts to encourage a flatworm to grow two heads.

The eel-like lamprey can return to normal swimming and burrowing after suffering a severed spinal cord twice.

At magnetic field intensities somewhat above that of Earth, stem cell proliferation shifts gears.

Lineage tracing reveals how cells help the salamanders regrow chopped-off limbs.

Salamanders’ and lizards’ tail regeneration depends on the quality of their neural stem cells.

Researchers deliver small interfering RNAs loaded into nanoparticles into the ears of adult guinea pigs to regenerate hair cells damaged by noise.

Cell implants, gene therapy, even optogenetics are making headway in clinical trials to treat various forms of blindness.  

The discovery reveals the role of a growth factor and endothelial cells in thymus repair, and could have implications for chemotherapy and radiation patients’ recovery following treatment.