Sea slug's 'disposable penis' surprises

A sea slug that is able to detach, re-grow and then re-use its penis has surprised scientists.

Japanese researchers observed the bizarre mating behaviour in a species called Chromodoris reticulata, which is found in the Pacific Ocean.

They believe this is the first creature known that can repeatedly copulate with what they describe as a "disposable penis".

The study is published in the Royal Society's journal Biology Letters.

http://www.bbc.co.uk/news/science-environment-21431678

Royal Society's link here : Disposable penis and its replenishment in a simultaneous hermaphrodite http://rsbl.royalsocietypublishing.org/content/9/2/20121150

Something for the weekend sir ? Got any sea slugs ?