Join shark expert Greg Skomal as he ventures under the Arctic ice in search of the Greenland shark. Sharing this icy, blue twilight with an apex predator is a thrill--so long as you don’t end up being mistaken for a ringed seal, the shark’s favorite meal. In this episode, we’ll learn how Skomal’s research is revealing how these evolutionary survivors endure despite astonishing obstacles. Photo Credit: Jeffrey Gallant (GEERG)read moreDuration: 5:33Published: Wed, 30 Nov 2011 17:45:03 +0000