<http://schema.org/alternativeHeadline>
"Fossils indicate that salamander ancestors had long limbs and heavy skeletons that would've of been of huge help when moving on land."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/animals/stories/original-giant-salamanders-once-hunted-on-land>