Apologies wreck-heads but I thought this was a fun article from NewScientist - and you've got to admit that's a he!l of a headline.
http://www.newscientist.com/article/dn2 ... ppers.html
It spends its days crawling slowly over the seabed in search of food and mates. Mostly mates, it must be said: rosy tritonias have sex three times as often as they feed. After a brief courtship and a few minutes circling each other, they copulate for over an hour.
The rosy tritonia is one of the growing list of animals that are known to sense Earth's magnetic field to help them navigate. It was first seen doing so in 1987.