Journal article
https://www.nature.com/articles/nature07039/ (paid)
Wound repair can seem an incredibly complex process to understand. Multiple biological pathways interact together in stages to facilitate scar formation in adults. In contrast, injured fetal tissues can be completely recreated without scarring or fibrosis. Some organisms, however, retain the ability to regenerate tissue throughout adult life. Knowledge gained from studying such organisms might help to unlock latent regenerative pathways in humans, which would change medical practice as much as the introduction of antibiotics did in the twentieth century.