Hability to drop off its penis and grow another one : Sea Slugs.
The sea slug's disposable, regenerating penis.
The Chromodoris reticulata sea slug has the peculiar ability to discard its penis after copulation. But what makes this soft-bodied marine mollusk particularly different is its ability to grow a new penis within 24 hours. Sea slugs are "simultaneous hermaphrodites," meaning they possess both male and female genitals and use both during intercourse. Once the slugs complete copulation, they "crawl away with their elongated penises still dangling," and then the organs suddenly sever from their bodies and float away. Within 24 hours, the slugs regenerate the penises and are ready to do it all over again.