Newt Limb Regeneration

This is a time-lapse sequence showing the stages of newt limb regeneration. The surgical amputation was at the level of the humerus. The pictures show the wound-healing, de-differentiation, blastema and re-differentiation stages of regeneration. Total time shown is approximately 20-25 days.

Courtesy of Dr. Susan Bryant,
Univ. of Calif., Irvine