<http://schema.org/alternativeHeadline>
"Trauma to the extended talon helped researchers determine that it was used for attacking, not to help the dinosaur maintain its balance."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/animals/stories/newly-discovered-dinosaur-reveals-fearsome-switchblade-claw>