Scientists uncover a critical component that helps killifish regenerate their fins

Spontaneous injuries like the loss of a limb or damage to the spinal cord are impossible for humans to repair. Yet, some animals have an extraordinary capacity to regenerate after injury, a response that requires a precise sequence of cellular events. Now, new research has unveiled a critical timing factor -- specifically how long cells actively respond to injury -- involved in regulating regeneration. The approach not only sheds light on the evolutionary aspects of regeneration but also holds promise for developing novel therapeutic strategies in regenerative medicine.