Some parts of our bodies bounce back from injury in fairly short order. The outer protective layer of the eye—called the cornea—can heal from minor scratches within a single day. The brain is not one ...

In developing hearts, cells shuffle around, bumping into each other to find their place, and the stakes are high: pairing with the wrong cell could mean the difference between a beating heart and one ...

Illustration showing a transplanted nerve cell (gold) using its internal compass (code) to find its partner nerve cells in the brain and spinal cord (green). Some parts of our bodies bounce back from ...