The species known for its ability to regenerate lost limbs is the axolotl, a type of salamander. Axolotls possess remarkable regenerative capabilities, allowing them to regrow not only limbs but also parts of their heart, brain, and spinal cord. This biological phenomenon is of great interest to scientists studying regeneration for potential applications in regenerative medicine and understanding cellular processes. The axolotl serves as a valuable model organism in these research efforts due to its unique genetic and physiological properties.