26 citations,
August 1971 in “Journal of Morphology” Lizards can regrow their tail scales with the same structure, distribution, and gender-specific features as the original ones, and this unique ability is not seen in adult mammals.
46 citations,
July 2007 in “Journal of comparative neurology” Manatee whiskers are specially adapted for touch in water.
3 citations,
January 2017 in “Stem Cells International” Adult mesenchymal stem cells can help regenerate tissues and are promising for healing bones, wounds, and hair follicles.
157 citations,
April 1994 in “Clinical endocrinology” Androgens can cause hair growth in some areas and hair loss on the scalp.
1 citations,
November 2017 The document concludes that while some organisms can regenerate body parts, mammals generally cannot, and cancer progression is complex, involving mutations rather than a strict stem cell hierarchy.