<http://schema.org/alternativeHeadline>
"Conservationists have estimated that the total number of Amur leopards has been around 30 since the mid-1970s, but the number could be above 40 now."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/animals/stories/rare-amur-leopards-photographed-for-the-first-time-in-china>