<http://schema.org/alternativeHeadline>
"Countless animals have been rescued, adopted, fed and loved by animal rights activists, whose concentrated efforts date back to the early 19th century."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/wilderness-resources/questions/whats-the-history-of-animal-rights-activism>