Add four new sharks to 2011 discoveries

More sharks than we thought
A new sawshark - often called a "sawfish" - was discovered in 2011, along with two smaller lantern sharks from Taiwan and an angel shark from the Philippines. But here's the money quote from this article: "Over the last ten years there’s been some 200 new shark and ray species described, whereas less than 200 in the previous 30 years."  The more we explore, the more we learn, and the more we learn the more we realize how little we knew.