All's Whale That Ends Whale - S1.E4

After diving with and feeding the Georgia Aquarium's whale sharks, host Jeff Corwin will head off to the Yucatan Peninsula in Mexico to track migrating sharks in the wild. Along the way Jeff joins the Georgia Aquarium team as they attempt the world's first blood draw from a whale shark in the open water. Using other migrating animals for comparison, Jeff seeks to unlock the enigma of the annual travels of the world's largest fish.