Intermission: World Ocean Day Edition

In honor of World Ocean Day (help here), here's a video of a frilled shark that wandered into shallow waters near Japan in 2007. The frilled shark is a "living fossil"-it's the only surviving species from the family Chlamydoselachidae and was thought to be extinct for a time.[youtube] case of the frilled shark nicely illustrates two important points about our oceans. First, we're pretty clueless about what they contain. And second, we're screwing them up.