<http://schema.org/alternativeHeadline>
"Smithsonian Channel's 'Hunt For the Super Predator' follows the mysterious disappearance of an 'alpha' shark that apparently wasn't the biggest fish in the sea."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/animals/stories/what-ate-the-great-white-shark>