<http://schema.org/alternativeHeadline>
"The hormone-disrupting chemical makes it hard for some fish to recognize their own species, a problem that could ripple throughout ecosystems."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/wilderness-resources/blogs/bpa-causes-interspecies-mating-study-finds>