<http://schema.org/alternativeHeadline>
"As Sea Shepherd's new aerial drones take 'whale wars' into the wild blue yonder, could they foreshadow the future of vigilante conservation?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/animals/blogs/anti-whaling-drones-rock-the-boat>