We're going to need a bigger remote. Shark Week, the Discovery Channel tentpole event, returns this week as fans of the Superorder Selachimorpha can once again relish in a slate of shark-related ...

Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified ...