<http://schema.org/alternativeHeadline>
"The ability of rats to both gnaw and chew have made them a force to be reckoned with among other rodents like squirrels and guinea pigs."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/animals/stories/how-the-rat-chews-its-way-to-top-of-the-rodent-world>