I hear a certain Dr Who does it all the time, but mere mortals like ourselves can't regenerate, not even as much as a finger. Research into why salamanders can regrow an amputated limb and we can't has received a boost from the genome sequences of three relevant species including the axolotl, which were obtained in spite of considerable difficulties.
Covering these advances in my latest feature, I stuck my neck out a bit and speculated on medical benefits, but I guess it will be a long time before we can learn from the axolotl.
Meanwhile, read the story here:
Regeneration lessons from the axolotl
Current Biology Volume 28, Issue 5, 05 March 2018, Pages R187–R189
Restricted access to full text and PDF download
(will become open access one year after publication)
The genome of the axolotl, Ambystoma mexicanum, is the largest ever sequenced. Researchers hope that it will facilitate the investigation of the remarkable regeneration abilities observed in this species. (Photo: Stan Shebs (CC BY-SA 3.0).)