THE BBC has a very interesting report on a sea slug found in the Pacific Ocean..
A sea slug that is able to detach, re-grow and then re-use its penis has surprised scientists. … They believe this is the first creature known that can repeatedly copulate with what they describe as a “disposable penis”. – Sea slug’s ‘disposable penis’ surprises
They’re not the first to lose their penis, but they are the first discovered who can regrow it.
However the researchers believe that Chromodoris reticulata is the first creature known that can re-grow its appendage – and its disposable penis gives it a sexual advantage.
Let the punch lines begin.