newts, developmental biology

Researchers find that newts are capable of regenerating body parts well into old age.

Cut off a newt’s tail or a leg, or remove a lens from its eye, and it grows back. However, whether newts can continue to do this throughout their lives, or lose the ability as they get older, has remained a mystery. 

A 16-year-long newt study finds that regeneration remains efficient with repetition and age.