Ah, the 1980s, when men pierced their ears like it was going out of style. And it was. Your earring holes may never have closed, but this mouse may hold the key to limb regeneration. Dubbed "the Miracle Mouse," this creature is the product of years of research by Ellen Heber-Katz, professor of immunology at the Wistar Institute in Philadelphia. The mouse can reportedly grow back amputated limbs or badly damaged organs, and its cells can pass on the traits to other mice.
Heber-Katz made her discovery after noticing that identification holes punched into the ears of experimental mice healed without any apparent scarring, according to Boston University.
photo via Wistar Institute