Sea cucumbers acting strange & a cuttlefish knockout

We kick off with some of the most unusual sea cucumber behaviour we've ever seen (ten points to anyone who can figure out what's going on there!), and then we take a closeup look at a cuttlefish mating ritual. Get ready to find out what happens when a male cuttlefish gets a little too close to the object of his rival's affections. Dive trips kindly sponsored by Raya Divers, Thailand - http://www.rayadivers.com/