File this under "gross but cool" -- when being attacked, African spiny mice have the ability to slough off large strips of their own skin to avoid capture, and can grow it back in record time.
Scientists believe the spiny mice have supercharged immune systems that prevent infection and facilitate the rapid regeneration. In the space of one day, wounds can shrink by 64 percent. In three days, good as new. Not even as much as a scar.
Salamanders can regrow limbs, but mammals are a whole different story. That's why these mice are so exciting for regeneration science: with a closer genetic link to humans established, Wolverine's healing factor might one day become a reality.
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